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Forclaz Men's Mountain Backpacking Merino Wool Boxer Shorts MT500
Looking for a comfortable and durable base layer? Here's the solution with these boxers containing reinforced merino wool for superior durability.
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San Francisco, 735 Market St. Options
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About this item:
- Durable and Breathable Merino Wool
- Moisture wicking: Significant absorption capacity
- Naturally flexible materials for comfort and freedom of movement
- Weight: 2.8 oz in Size L
Product Features

Softness
Ultra-fine (18.5 microns) Merino wool. It is soft and pleasant to wear
Moisture wicking
The high absorption capacity of the wool removes the feeling of dampness
Odor control
The component limits perspiration odours. Laboratory test ISO 17299-3
Abrasion resistant
Wool fibre surrounded by polyamide yarn for protection
Freedom of movement
We have added 4% elastane for more stretch and support
Breathability
Merino wool is breathable, stays warm in winter and wicks away moisture in summer
Weight
These boxers weigh only about 80g in size L. 190 g/sqm fabric
Questions & Answers
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Product Customer Reviews
Very comfortable
Very comfortable
Very comfortable
excellent value for money, I only use it for hiking and in everyday life
very good product, comfortable
Great underwear even if a little long in fit
Used to 100% merino and not convinced by your 86% T-shirts (less limitation of odors, "sticky"), I was pleasantly surprised by your boxer shorts. Nice cut and the mixed composition did not seem penalizing to me (to see in summer?), while it provides resistance: to see over time. A kangaroo pocket would be a plus, but I am generally convinced.
Good breathability and moisture absorption, no odor after sweating during exercise
Keeps you warm but a bit expensive for underpants
Ideal product
really comfortable underwear, soft, stretchy and breathable. highly recommended for all those who go trekking for several days!
I use it at work, requiring a lot of effort and I stay dry thanks to these underpants. Extremely comfortable and little odor after exercise whether hiking or at work.
Very comfortable to wear. So I bought a second one.
Super comfortable in the cold
I personally use them for snowboarding and they are very comfortable, they dry easily, and they don't retain odors.
Size Guide

Additional Product Information
Composition
Main fabric: 86.0% Wool, 4.0% Elastane, 10.0% Polyamide
Sizing and fit
These boxers have a fitted cut for enhanced moisture transfer to the outside of the fabric.
How have we enhanced the durability of our boxers made with merino wool?
We have used a BETA-SPUN yarn structure in which the polyamide threads coat the Merino wool fibres and protect them from rubbing and breaking without affecting their properties.
Tip before use
To make the component feel softer, don't hesitate to wash your boxers before first use.
How to wash your merino wool boxers
We recommend that you machine wash your Trek 500 Merino boxers at 30°C on a normal cycle, preferably with liquid detergent. Dry flat and NEVER tumble dry unless you want it to shrink by one or two sizes!For more information: https://support.decathlon.co.uk/how-to-maintain-a-merino-wool-garment
Product testing
These boxers have been tested and validated in the field in real-life conditions. They were worn for 5 weeks in spring 2019 by several people who went trekking in the Canary Islands for 2 weeks, followed by 3 weeks on the GR10 route in the Pyrenees.
Origin
Imported

Forclaz Men's Mountain Backpacking Merino Wool Boxer Shorts MT500
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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.
