Quick answer: Deux par Deux snowsuits come as one-piece and two-piece suits in the DISCOVER, PLAY and TEKNIK lines, plus baby suits. Specs differ by product: the pages we checked list a -30°C (-22°F) brand rating and waterproof ratings from 5,000 to 15,000 mm. The pages we checked say the suits fit generously and advise against sizing up.
"A Deux par Deux snowsuit" can mean a puffy baby one-piece with removable mittens and booties, a daycare-ready one-piece snow suit, or a ski-ready two-piece with a 15,000 mm shell. The specs aren't the same, and the right choice depends on your child's age, routine and where they spend winter.
This guide walks you through the current range, how to read the specs on a product page, one-piece vs two-piece, sizing, layering, car seats and care. Every product spec below is quoted from that specific product's page on Jenni Kidz, so you can check it yourself.
Shop the guide: Two styles to start with are the Deux par Deux PLAY one-piece snowsuit in multicolor diamond print, listed in sizes 2 to 14, and the DISCOVER two-piece snowsuit in blue bear print. You can compare every current style in our Deux par Deux collection.
What this guide covers
- A short overview of the DISCOVER, PLAY and TEKNIK lines and the baby suits
- How to read temperature, waterproof, breathability and insulation numbers
- One-piece vs two-piece, with a simple decision guide
- Deux par Deux snowsuit sizing and grow-with-me features
- Layering, cold-weather limits and car seat guidance from health and safety groups
- Washing, drying and a pre-checkout checklist
Which Deux par Deux Snowsuit Lines Are Available?
The current Deux par Deux snowsuit range includes three kids' lines (DISCOVER, PLAY and TEKNIK) and baby one-pieces. Here's a quick view based on product pages we checked this season. For a deeper line-by-line comparison, read our guide to Deux par Deux DISCOVER vs PLAY vs TEKNIK.
| Product (as listed) | Sizes | Brand temperature rating | Shell waterproof rating |
|---|---|---|---|
| Baby Original One Piece Puffy Snowsuit With Removable Mittens And Boots Olive Green | 6m–30m/2T | -30°C / -22°F | 5,000 mm |
| Two Piece Discover Snowsuit Pink With Black Pants | 2–8 | -30°C / -22°F | 10,000 mm |
| Kids One Piece Play Snowsuit Pink | 2–14 | -30°C / -22°F | 10,000 mm |
| Two Piece Play Snowsuit Red With Black Pants | 2–14 | -30°C / -22°F | 10,000 mm |
| Kids One Piece Teknik Snowsuit Black | 4–16 | -30°C / -22°F (hood insulation) | 15,000 mm |
| Two Piece Teknik Snowsuit Pink | 4–16 | -30°C / -22°F (insulated hood) | 15,000 mm |
Deux par Deux describes the lines in its own words. On its girls' snowsuits page, the brand says the collection "was designed in Montreal to handle real Canadian winters," calls TEKNIK "our most technical line, built for skiing and snowboarding," describes PLAY as "designed for active daily use: recess, the park, sledding," and calls DISCOVER "versatile and practical, a great all-around option for family outings and casual winter days." The same page says one-piece and two-piece formats are "available from size 2 to 16" across that collection.
Two details are worth noticing. First, the numbers belong to each product, not to a whole line, so always read the page for the exact colour and style you're buying. Second, the TEKNIK pages attach the -30°C rating to the hood insulation, while the PLAY and DISCOVER pages give it for the suit's polyester fill.
What makes TEKNIK different from PLAY and DISCOVER?
TEKNIK adds ski-specific details. The product page for the Two Piece Teknik Snowsuit Pink lists a zippered sleeve pocket for a season pass, an adjustable snow skirt, snap-close ankle gaiters and adjustable ski-boot cuffs, plus recycled PrimaLoft® insulation and a 15,000 mm, 15,000 g/m²/24h shell. Note that the PLAY pages we checked also list a zippered ski-pass sleeve pocket, so the clearer TEKNIK differences are the adjustable ski-boot cuffs and the higher shell ratings.
Which suits are made for babies?
The Baby Original is the baby one-piece we feature this season. The product page for the Baby Original One Piece Puffy Snowsuit With Removable Mittens And Boots Olive Green lists sizes 6 months to 30 months/2T, "down-like polyester (hood 114 g, body 255 g, sleeves 170 g)" with a "brand rating -30°C / -22°F," and "removable fleece-lined mittens and booties, neckwarmer included." Its fit features are "stretch cuffs, internal adjustable waist, adjustable rubber stirrups, ankle snow gaiters, reflective details." For a broader look at baby winter options, see infant bunting vs one-piece snowsuit.
How Do You Read Deux par Deux Snowsuit Specs?
Read four numbers on each product page: the brand temperature rating, the waterproof rating in mm, the breathability rating in g/m²/24h, and the insulation weight in grams by zone. Then check the features list. Together, they tell you more than the line name alone.
What does the Deux par Deux temperature rating mean?
It is the brand's own rating, not a guide to how cold is too cold for outdoor play. The product pages say the suits are "rated to -30°C (-22°F) by Deux par Deux" or give a "brand rating." That number helps you compare suits within the range. It doesn't tell you how long a child can stay outside.
For that, follow health guidance. Caring for Kids, from the Canadian Paediatric Society, says to "plan to reduce the amount of time children spend outside when the temperature falls to -15°C (5°F) or colder" and to "consider keeping them indoors whenever the temperature or the wind chill is reported to be -27°C (-16°F) or lower." A -30°C brand rating does not change that advice.
What do the waterproof and breathability numbers mean?
They are the shell fabric's listed ratings, and higher numbers on the same scale mean a higher rating. The product page for the Kids One Piece Play Snowsuit Pink lists a "polyurethane coated, 10,000 mm waterproof, 5,000 g/m²/24h breathable" shell. The Kids One Piece Teknik Snowsuit Black lists "15,000 mm waterproof, 15,000 g/m²/24h breathable" and adds that it is "critically seam-sealed at the armholes, shoulders, hood and crotch." The Baby Original lists 5,000 mm.
If your child spends a lot of time kneeling or sitting in wet snow, the higher ratings and sealed seams on TEKNIK may be worth comparing. For dry cold and shorter outings, a lower rating may be all you need. The listed rating is what the brand states; it isn't a promise that no moisture will ever get in.
How much insulation is in a Deux par Deux snowsuit?
It depends on the product, and the pages list fill by zone. The Kids One Piece Play Snowsuit Pink lists "polyester fill: 57 g hood, 170 g body, 170 g sleeves and legs." The Kids One Piece Teknik Snowsuit Black lists "recycled PrimaLoft®: 100 g hood, 170 g body, 133 g sleeves and legs." The Baby Original lists 114 g in the hood, 255 g in the body and 170 g in the sleeves. Different fill types and weights are one reason ratings differ.
Which features should you look for?
- Snow gaiters and cuffs: the Play one-piece lists "elastic cuffs with Velcro® tabs and inner stretch cuffs" and an "ankle snow guard."
- Reinforcement: the Play one-piece lists "500-denier Cordura® at the knees, seat and hems."
- Visibility: the Play one-piece and Play two-piece list reflective bands; the Teknik one-piece has reflective strips across the back and lower legs.
- Hood: the Play one-piece hood is "detachable, adjustable at the back," with a removable faux-fur trim.
- Extras: the Play one-piece includes a "polar fleece neckwarmer."
Should You Choose a One-Piece or Two-Piece Deux par Deux Snowsuit?
Choose a one-piece when you want simple, gap-free coverage from neck to ankle, and a two-piece when your child needs to use the jacket on its own or handle bathroom trips independently. Both styles are sold in the PLAY and TEKNIK lines, so the decision is about routine, not warmth.
| If this sounds like your child… | Consider |
|---|---|
| Baby or young toddler who is carried, in a stroller or crawling in snow | One-piece |
| Rolls, digs and sits in deep snow and you want no gap at the waist | One-piece |
| Uses the bathroom independently at daycare or school | Two-piece |
| Needs a jacket on milder days without the snow pants | Two-piece |
| Spends part of the day indoors where the jacket comes off but snow pants stay on | Two-piece |
Two-piece suits in the range aren't just a coat and pants. The Two Piece Play Snowsuit Red With Black Pants lists a snow skirt on the jacket and "removable adjustable suspenders" on the pants. The Two Piece Discover Snowsuit Pink With Black Pants uses "bib style" snow pants with "adjustable, detachable suspenders." Those details help close the waist gap that parents often worry about with two-piece suits.
If you're still unsure, ask two questions: Does my child need to manage the bathroom alone? Will the jacket be worn by itself often? If both answers are no, a one-piece is usually the simpler pick. Browse one-piece snowsuits or two-piece snowsuits to compare.
How Should a Deux par Deux Snowsuit Fit?
A Deux par Deux snowsuit should fit your child's current size with room for a light layer underneath. The product pages we checked say the suits fit generously. The Kids One Piece Play Snowsuit Pink, for example, says "fits generously; Deux par Deux advises not to size up," and the Baby Original page says "fits generously; the brand advises not to size up."
Should you size up in Deux par Deux snowsuits?
No, according to the brand guidance on these pages. Instead, the suits include grow-with-me features. The Kids One Piece Play Snowsuit Pink lists sleeves that "extend 4 cm (1.5")" and a "two-level adjustable button hem" that "adds 7.6 cm (3")." The Two Piece Discover Snowsuit Pink With Black Pants lists sleeves that extend 4 cm and a "one-level adjustable Velcro® hem" that "adds 5.7 cm (2 1/4")." The Baby Original page doesn't list sleeve or hem extensions, so plan for current size.
How do you check fit at home?
- Put on the base layer and mid layer your child will actually wear.
- Zip the suit fully and have your child squat, reach overhead and sit on the floor.
- Check that the sleeves reach the wrist when the arms are raised.
- Check that the hem sits at the top of the boot without dragging on the floor.
- Look for pulling across the back or crotch, which means it's too small.
Our snowsuit sizing guide for babies, toddlers and big kids goes into measuring in more detail.
What Should Kids Wear Under a Deux par Deux Snowsuit?
Kids should wear a few lighter layers under a snowsuit rather than one heavy one. Parachute, Canada's injury prevention charity, says "a few lighter layers protect better than one heavy garment," and suggests an absorbent synthetic layer next to the skin, a warmer middle layer and a water-resistant outer layer. The snowsuit is that outer layer.
Caring for Kids adds that children "should wear a neck warmer and a warm hat that covers the ears," and that "mittens are better than gloves in really cold temperatures." It also says the most common places for frostbite are "the cheeks, ears, nose, fingers, and toes."
Two safety details from Parachute are easy to miss. It recommends "tube-shaped neck warmers instead of scarves to avoid strangulation during play," and "hoods and jackets without drawstrings, as drawstrings are a safety hazard for children." Several Deux par Deux suits include a polar fleece neckwarmer, including the Kids One Piece Play Snowsuit Pink and the Two Piece Play Snowsuit Red With Black Pants. For hats and mittens, see winter accessories, and for layer-by-layer tips read our layering guide for changing weather.
Should Kids Wear a Snowsuit in a Car Seat?
No, not under the harness. The American Academy of Pediatrics (AAP), on HealthyChildren.org, explains that "in a car crash, fluffy padding in a coat immediately flattens out from the force, leaving extra space under the harness," and that "bulky clothing, including winter coats and snowsuits, should not be worn underneath the harness."
Take the snowsuit off before you buckle. That is the plain version of the AAP's advice: bulky coats and snowsuits shouldn't go under the harness, whatever the brand. The AAP suggests dressing your child in thin layers, such as tights, a long-sleeved bodysuit and a thin fleece jacket. Buckle and tighten the harness, then put the coat on backward over the straps or tuck a blanket over the harness. The AAP says "nothing bulky should ever go underneath your child's body or between their body and the harness straps."
Then do the pinch test the AAP describes: "If you can pinch the straps of the car seat harness, then it needs to be tightened." Follow your car seat manual as well, since it is the final word on what your child can wear in that seat. Once the car warms up, remove the blanket or coat so your child doesn't overheat.
How Do You Wash and Store a Deux par Deux Snowsuit?
Follow the care line on the product page, which for the suits we checked is very consistent. The Kids One Piece Play Snowsuit Pink says: "remove the faux fur and close all zippers and Velcro® before washing; machine wash cold; tumble dry low; no bleach, fabric softener or dry cleaning; keep away from heat sources." The Teknik and Discover pages list the same core steps.
- Brush off snow and hang the suit to dry between outings, away from heaters.
- Wash only when needed, following the care line.
- Close every zipper and Velcro® tab before it goes in the machine.
- Skip fabric softener, as each page instructs.
- Store the suit clean and dry at the end of the season.
Our guide to caring for winter clothing has more tips for snowsuits and jackets.
Which Deux par Deux Snowsuit Is Right for Your Child?
Match the suit to your child's age and routine, then confirm the exact specs on the product page. Here's a simple starting point:
- Babies in the stroller and first snow: look at the Baby Original one-piece, with its removable mittens and booties and included neckwarmer.
- Toddlers and preschoolers at daycare: compare a PLAY one-piece with a DISCOVER two-piece; look at the bib pants and grow features.
- School-age kids: a PLAY two-piece suits independent bathroom trips; a PLAY one-piece suits kids who spend recess in the snow.
- Ski and snowboard days: look at TEKNIK for the adjustable ski-boot cuffs and 15,000 mm shell listed on its pages.
What should you check before checkout?
- The brand temperature rating and waterproof rating for that exact product.
- One-piece or two-piece, based on your child's routine.
- The size your child wears now, since the pages advise against sizing up.
- Grow features: sleeve extension and hem settings.
- What's included, such as a neckwarmer or mittens and booties.
- The care line.
You can compare current styles in the Deux par Deux collection, or see every brand together in snowsuits, girls' snowsuits and boys' snowsuits.
Frequently Asked Questions
Are all Deux par Deux snowsuits rated to -30°C?
Not necessarily. Ratings belong to each product. The current PLAY, DISCOVER, TEKNIK and Baby Original pages we checked list -30°C (-22°F), but the TEKNIK pages tie it to the hood insulation. Check the page for the exact style.
Do Deux par Deux snowsuits run big?
The product pages we checked say the suits fit generously and that Deux par Deux advises not to size up. Order the size your child wears now and use the grow features listed on the page.
What is the difference between DISCOVER, PLAY and TEKNIK?
TEKNIK adds ski-specific details such as adjustable ski-boot cuffs and a 15,000 mm shell on the pages we checked. PLAY and DISCOVER pages list a 10,000 mm shell. Our DISCOVER vs PLAY vs TEKNIK guide compares them in depth.
Is a one-piece or two-piece snowsuit better?
Neither is better for everyone. A one-piece gives gap-free coverage for babies and kids who play in deep snow. A two-piece suits kids who use the bathroom on their own or wear the jacket separately.
How cold is too cold for kids to play outside?
Caring for Kids advises reducing outdoor time at -15°C (5°F) or colder and considering staying indoors when the temperature or wind chill is -27°C (-16°F) or lower. A snowsuit's brand rating does not change that guidance.
Can my child wear a snowsuit in a car seat?
Not under the harness. The AAP advises against bulky coats and snowsuits under car seat straps. Take the snowsuit off, dress your child in thin layers, buckle and tighten the harness, then put the coat or a blanket over the straps. Do the pinch test and follow your car seat manual.
Can I machine wash a Deux par Deux snowsuit?
Yes, according to the care lines we checked: close all zippers and Velcro, machine wash cold and tumble dry low. Don't use bleach, fabric softener or dry cleaning, and keep the suit away from heat sources.
What should my child wear under a snowsuit?
Parachute suggests a few lighter layers: an absorbent layer next to the skin and a warmer middle layer. Add a hat that covers the ears, mittens and a tube-shaped neck warmer instead of a scarf.
Bottom Line
Deux par Deux snowsuits vary more than the brand name suggests. Compare the exact product page: temperature rating, waterproof and breathability numbers, insulation by zone, grow features and what's included. Choose one-piece or two-piece by routine, buy the size your child wears now, layer underneath, and follow AAP car seat guidance and Canadian Paediatric Society cold-weather limits.
Sources
- American Academy of Pediatrics, HealthyChildren.org: Winter Car Seat Safety Tips from the AAP
- Deux par Deux product pages at Jenni Kidz: Girls' snowsuits collection
- Canadian Paediatric Society, Caring for Kids: Frostbite
- Parachute: Winter Outdoor Safety
- Jenni Kidz product page: Kids One Piece Play Snowsuit Pink
- Jenni Kidz product page: Kids One Piece Teknik Snowsuit Black
- Jenni Kidz product page: Two Piece Teknik Snowsuit Pink
- Jenni Kidz product page: Two Piece Play Snowsuit Red With Black Pants
- Jenni Kidz product page: Two Piece Discover Snowsuit Pink With Black Pants
- Jenni Kidz product page: Baby Original One Piece Puffy Snowsuit With Removable Mittens And Boots Olive Green
