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Forclaz Trek 500 Merino Wool Backpacking Underwear Women's
You no longer need to take a range of underwear with you when backpacking, as these pants come in a comfortable, natural fiber and dry quickly. The new solution for your hikes!
Free shipping over $35
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Natural
86% wool (6.7 oz/m²), fiber of natural origin offering comfort and softness.
Moisture wicking
The significant absorption capacity of the wool keeps the body dry.
Abrasion resistant
Use of wool fiber surrounded by polyamide yarn for protection.
Freedom of movement
Naturally stretch component for comfort and freedom of movement.
Weight
1.7 oz in size M (12)
Product Customer Reviews

There are lots of threads hanging off the underwear, I have not used them yet but first appearance is not good.
just got my first pair of these and they are way better than any others I have had, will be perfe t when out treking this summer, definitely going to buy more
Hello Katrina,
Thank you very much for your review.
We are happy you are satisfied with your Trek 500 merino underpants. It' s a must-have for trekking!
Have a great day. ☺
Marie 🏊🏼♂️
Décathlon Canada
These are great and a good price but the sizing chart is off - I normally wear a 10 or small, but from the chart a 10 comes up as medium. This is what I ordered and they were a bit loose. I've given them to someone who they will fit and ordered a size smaller
I would say colour more burgundy so bit disappointing as I’m a bright purple person also took out of packet and thought there sizing was totally out no way is my backside that big!! Tried on perfect fit for after swimming not tight but snug fit easy to get on when cold warm and dry really impressed
Wash well, true to size. Quick drying. Will buy more
Страхотна покупка, леко скъпи, но си заслужава. Ако сте L размер си вземете M. Аз съм така и М-ката ми е точна. Мисля да си взема и лилавите.
Здравейте,
Благодарим Ви, че отделихте от времето си, за да ни оставите Вашата обратна връзка. Нашият екип следи всички канали, за да можем да подобряваме услугите си всеки ден. Ще предадем на нашите екипи всичко, което ни споделихте.
Спортни поздрави,
Екипът на Декатлон
Много меки и удобни. Не стягат, топли са, въпреки фината материя. Хубав цвят. Лично аз бих могла да се пъхна и в по-малък номер от този, който ми препоръча размерната таблица, тъй като бикините са доста разтегливи. Много добро попадение.
Příjemný materiál.
Nejsou špatné, ale dobrá by byla varianta s delšími nohavičkami pro větší pokrytí hýždí - doporučení manželky.
Používám v zimě, jako druhé kalhotky na spodním prádle, protože se zdají tenčí. Tvar je spíše kalhotkový.
Mám už druhé. Jsou větší, takže beru o číslo menší velikost, než je navrženo. Příjemně se nosí, netlačí. Rychle schnou.
kalhotky jsou volnější, budu vyměňovat za menší
Velmi pohodlné, skvělý materiál
Skvěle odvádí pot a nestudí. Doporučuji zakoupit o číslo menší velikost než běžně nosíte.
ideální do chladného počasí. Normálně mám L, tyhle by stačily M
Size Guide

Additional Product Information
Composition
Main fabric: 86.0% Wool, 4.0% Spandex, 10.0% Polyamide ; Yoke: 98.0% Wool, 2.0% Polyamide
Durability
A new yarn structure in which a polyamide yarn forms a thin sheath that protects the Merino wool fibers against friction and cuts
What is the fit of the backpacking pants?
These sports pants have a cut with an enveloping notch at the seat for superior comfort when hiking.
Freedom of movement
The flat seams provide good comfort throughout the day.The addition of spandex provides good freedom of movement.
How to wash your merino wool pants
Machine wash your Merino wool pants at 86°F on a normal cycle, preferably with liquid detergent. Dry flat. NEVER tumble dry.For more information: Visit our website
Tip before use
For more softness and hygiene, wash your briefs before first use.
Origin
Imported
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Forclaz Trek 500 Merino Wool Backpacking Underwear Women's
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
