Name: All-Weather Fleece Onesie - Fairy Glass
Brand: Therm Outdoor
SKU: TW26112FGL00
Price: 64.99 CAD
Availability: InStock

$64.99

CAD. Excludes Tax

Next restock May 2026

Size chart

The measurements below show the recommended height and weight ranges for our garments. We generally advise to base your sizing on your child's height first, as this is where they grow the fastest!

If your child is at the very upper end of the height range then you can expect the garment to fit this season and possibly into next, but you may want to go with the next size up to allow for extra growth.

Still unsure? See our full list of actual garment measurements below to compare to your items at home. And feel free to email us at hello@thermkids.ca and we would be happy to offer advice!

Ships from BC. Standard Domestic Delivery: 2-7 business days. Free on orders over $75

30 day return window for unworn items + 12 month warranty

Outer: 10,000mm Waterproof & Windproof 100% Recycled rPET Tricot Shell with bonded 100% Recycled rPET Microfleece lining

Made from sustainable recycled materials with recyclable packaging.

Designed for real life, this softshell onesie keeps little ones warm, comfortable, and protected through changing weather. With a 10,000mm waterproof-rated & 100% windproof outer, it easily handles light rain, harsh wind, and even snow, while the soft, stretchy fabric and cozy microfleece lining keep them snug from head to toe.

Free from harmful chemicals, it's easy to layer and designed for all-day comfort. The fleece lining provides warmth without padding, so it's safe in the carseat (provided no padded layers underneath). From crawlers through to puddle jumpers, this versatile suit is an ideal choice in chilly, rainy, or snowy conditions.

Note: seams are not taped. For heavy rain we recommend our SplashMagic or 10K range of rainwear.

Add All-Weather Blanket for $17.99. Add Onesie to cart then select blanket in the pop up

Non-Toxic, Free from PFCs, PFAs, Phthalates and Lead

Most comfortable from 15° to 0°C depending on layering (thermal underlayer and fleece recommended at 0°)

Eco-Friendly: 100% Recycled rPET fabric - made from used plastic products such as water bottles.
Soft and stretchy outer fabric with microfleece lining throughout
Fold over cuffs at hands and feet size 6-12m and 12-18m only. Size 2T & 3T have elastic cuffs.
Rubberised coating at knees and seat for added durability
2-way zipper for easy changing, and soft zipper guard to protect the neck..
Reflective features front and back
Machine washable and dryer safe.

Outer: 100% Recycled rPET Fabric - made from recycled water bottles
Lining: 100% Recycled rPET Microfleece Fabric - made from recycled water bottles
Packaged in Recycled Ocean Plastic polybag
Shipped in Recycled Ocean Plastic mailer

Machine washable and dryer safe!

Just throw your Therm garment in the wash with your normal load - we recommend a warm wash with liquid detergent, not powder.

Plus all of our garments love the dryer! In fact the dryer is needed for the waterproof coating. If your Therm garment doesn't seem as waterproof as it was, (or the SplashMagic pattern isn't appearing well) just dampen it again and dry it fully in a medium to hot dryer.

IMPORTANT: Don't forget to zip up all zippers before washing and drying!

Warehouse Clearance Sale: Items discounted 50% or more are final sale and not eligible for return, refund or exchange.

30 day returns/exchanges + 12 month warranty. And we cover the return postage!

Read more: Exchanges and Returns

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Built for toddlers

From crawlers to puddle jumpers, our onesies are just for tiny tots! A versatile suit for chilly, rainy, or snowy conditions.

Cozy and warm

Our cozy onesie combines soft fleece with a full weather protective waterproof & windproof outer shell. A comfortable, all-in-one with a soft and stretchy feel, bonded with ultra-soft microfleece lining for warmth

Technical Weatherproof Fabric

Our signature bonded All-Weather Fleece fabric features a DWR coating on the outside, and an inner waterproof membrane sealed between the outer layer and the microfleece lining.

Sustainably made

We only use recycled fabrics, and recycled ocean plastic packaging.

Fast, free shipping

We aim to ship orders same or next business day. Free on orders over $75

Free & Easy Returns

30 day returns/exchanges + 12 month warranty. And we cover the return postage!

Don't take our word for it

★★★★★
No seriously! You need it in your life! I live right by the lake in Chicago, it’s very windy and cold. I don’t have a car, so I carry my 10m old son in a carrier everywhere I go. This helps keep him warm and dry so I don’t have to try and layer anymore with bulky items that would make it harder than it already is for a single parent w a baby.
Laurel B.
Chicago, IL, USA

★★★★★
We call this the fun suit. It's only worn when there is fun to be had. The fun suit is a fun enabler. It's been worn in wet grass, sand, mud, frost and snow. It's easy to wash (rinse it and throw it in the washing machine). It dries super fast. We sized up so that it can be thrown on over anything and everything. Would 100% recommend. Looks awesome too.
Zara M.
Auckland, NZ

★★★★★
I have a 1 year old and live where it snows. It's soooo hard to find something that is cute and stylish while also preventing water from soaking her clothes.
This year she is walking and running around so bought the size up and let me tell you it's amazing. She played in the snow and puddles for hours.
Rebecca H.
USA

★★★★★
We live in Texas where the winter can get chilly, but not sub-zero. This suit is perfect. I can put it on my busy toddler quickly and easily, which I love. We just use it in place of a coat, that way I’m assured his whole body is warm, not just his upper half. The outer material makes it winproof which is great because it gets very windy here. It’s such a nice quality little suit! I’m a picky, slow to decide shopper and I’m really happy with my purchase!
Carrie
Texas, USA

★★★★★
I bought this for our son to wear in rainy Ireland. It was an absolute Godsend! He wore it everywhere just in case there was a pop up shower. He was never too hot because the material is breathable. I would definitely recommend this product.
Nicole Z.
USA

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All-Weather Fleece Onesie - Fairy Glass

Built for toddlers

Cozy and warm

Technical Weatherproof Fabric

Sustainably made

Fast, free shipping

Free & Easy Returns

Don't take our word for it

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