ThermaDry Kids Thermal Long Sleeve TOP (Rainbow Stripe)
Kids thermals made from 100% Polypropylene - highly effective for retaining warm layer of air against the skin. Quick dry.

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Outdoor Kids Australia (6289)
Seller Accepts
Shipping Policy
Australia wide shipping - we do not ship overseas.
Return Policy
Money Back / Exchange within 14 days

Kids Long Sleeve Thermal Top (crewneck)



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100% Polypropylene Thermal Underwear  

ThermaDry Kids Thermal Underwear is quick drying & keeps kids warmer for longer

ThermaDry Kids Unisex Polypropylene thermals are hard wearing, resitant to rubbing, stretching or tearing - and only 70% of the weight of an equivalent wool garment .  Polypropylene draws moisture and perspiration away from the skin, transferring it to the next layer whilst retaining a warm layer of air next to the skin.


  • Wickability

Draws moisture & perspiration away from skin, transferring it to next layer & retaining warm layer of air next to skin

  • Low Thermal Conductivitiy 

Provides better insulation which keeps child warmer for longer periods

  • Quick Drying 

Wash & hand up to dry - a wet garment dries in minutes!

  • Hard Wearing 

High resistance to rubbing, stretching or tearing. Seams are reinforced with elastic to maintain shape after prolonged wear.  Quality garments made in New Zealand. 

  • Lightweight 

Polypropylene is only 70% of the weight of an equivalent wool garment



Please refer to size guide prior to purchasing

For health & hygiene reasons we are unable to accept returns of thermal underwear


ThermaDry Kids Thermal Underwear SIZE GUIDE

 Size / Age Chest Height
3-5 yrs 54-59cm 90-112cm
6-8 yrs 59-66cm 112-124cm
9-11 yrs 66-70cm 124-136cm
12-14 yrs 70-81cm 136-142cm





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Your base layer (thermal underwear) should be made of a high performance fabric that not only draws sweat from the body, but also dries quickly so that the wearer stays warm, dry & comfortable...


About Thermal Underwear
What is polypropylene thermal underwear?
Polypropylene retains more heat than any other fabric making it the warmest thermal underwear you can buy. As a specialty outdoor performance garment, it is not generally available in large department stores. 
100% polypropylene underwear does not absorb water. Instead, it spreads sweat and moisture evenly across the fabric so that it will dry quickly and keep your skin dry. It really is an amazing material.  
You can throw a set of polypropylene thermals in the washing machine or hand wash, hang them up and they will be dry within minutes! This makes polypropylene thermals the perfect choice for winter wear and trips to the snow.
How does it compare with other types of thermal underwear?
If you’ve never purchased thermal underwear before, it can be quite confusing figuring out what’s what, as “thermal underwear” is marketed in variety of forms:
Cotton is not a thermal performance yarn & does not have the ability to effectively retain warmth or draw moisture away from the skin. It tends to stay wet and heavy and may also smell by the end of the day. Our advice – give it a miss!
Generally regarded as more of a trans-seasonal fabric. Polyester does not retain warmth as well as Polypropylene and takes longer to dry.
Woollen garments breathe well, but weigh slighty more. They also take longer to dry than polypropylene. Wool’s ability to draw moisture away from the skin (known as ‘wicker’) is also excellent, but does not perform as well as polypropylene in comparison.
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Explore Outdoor Kids Australia’s huge range of kids winter outdoor clothing : kids ski jackets & pants, baby & kids snow suits, baby & kids thermal underwear, kids thermal ski socks, kids ski goggles, kids snow boots, baby winter snow clothing, kids ski gloves & mitts, hand warmers and so much more… all available via our online store

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