Polypropylene Thermal Underwear provides the ultimate solution in keeping you perspiration free, warm and comfortable, by wicking away moisture from the body as you enjoy your favourite winter sport or just travelling in colder climates. Tough and hardwearing Sportztrek thermals offer maximum performance with ease of movement and without the sacrifice of comfort.
Sportztrek use one of the softest yarns in the world to produce simple, fast drying and thermally efficient underwear. Its hydrophobic (water-hating) fabric wicks the moisture away from the skin quickly and efficiently to the next layer of clothing helping keep you dry and warm. The skin maintains a more constant temperature during strenuous activities than polyester and is an ideal choice for outdoor, sporting and leisure activities.
This thermal top will meet the mandatory gear requirements of most ultramarathon races including The Guzzler Ultra, Ultra-Trail Australia and more.
UTA Compliant
Material: 100% Polypropylene
Free delivery on all Australian orders over $69.
Upgrade to Express Delivery for $10 on all orders over $69.
Standard Delivery | |
---|---|
Order Value | Postage Cost |
Under $69 | $10 |
$69+ | FREE |
Express Delivery | |
---|---|
Order Value | Postage Cost |
Under $69 | $20 |
$69+ | $10 |
All our deliveries are made with Australia Post's carbon neutral parcel delivery service. Read our full delivery information.
Returns, Exchanges and Refunds
See our full returns policy.2024 Christmas Delivery
Delivery to: | Standard | Express |
Australia (excl. WA and NT) | 18th December | 21st December |
WA | 15th December | 20th December |
NT | 14th December | 20th December |
These dates are provided by Australia Post, and are outlines for delivery to Metro areas. For rural deliveries, please allow additional time.
Help other users shop smarter by writing reviews for products you have purchased.
Goes Well With
Shop With The Trail Running Experts

Your purchases give back
We donate 1% of our gross sales to approved environmental non-profit organisations, every year.
Help From
The Experts
Our team are knowledgeable and friendly. Visit us in-store or call us for help.
Carbon Neutral Shipping
FREE on orders over $69.