Product Colors and Sizes
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
- Black Friday product
- New Deal product
- Cyber Monday product
- Clearance product
- Deal product
- Best Seller product
- Ecodesign product
- New product
- Staff Pick product
- In The News product
- Innovation product
- product
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.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
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 Videos
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
There are no questions
Be the first to post a question
Product Customer Reviews

The first choice for mountain climbing
Perfect
Excellent boxer shorts used on various trekking trips in both summer and autumn. Never been hot in summer or cold around 5 degrees so for me they are excellent considering the price.
The recommended size is quite small and is very tight. It is also so thin that it is a little transparent. As for its behavior against cold, odor and sweat, perfect.
Worn on the trip (16h+) they behaved very well. The material is pleasant to the touch, it regulates the temperature well (I left at 22 degrees and arrived at -3). It remains to be seen how they will behave in time.
Very comfortable boxers, easy to wash, even with any hand soap, they are perfect during treks. They don't sweat much, they don't retain bad odors, really excellent.
Just lacks a little originality
Tested during three days of trekking in the summer and since then used for every outdoor activity. No feeling of humidity on the skin despite sweating, and despite going for days without a shower I had no problems with bad odor (I repeat that I sweated profusely). I was more than satisfied, I bought two more pairs.
Due to a damaged item, I returned the panties I ordered. I had no problems with the return
comfortably warm and absorbs sweat
VERY GOOD, WARM, TIGHT, DRESS WELL
Great boxers, I love wearing them.
Yes it is effective, for odors and perspiration, when I put it on I have the impression of seeing almost nothing, unparalleled softness and no itching, ultra-fast drying. But what's the problem? First of all, I would like to point out that I wash it gently by hand and dry it flat. The problem comes from buying 1 piece of underwear for more than €20 that we take care of it but the seams fray more and more every day on both sides of it at the first wash. started and given the price we hope for a quality product it's a real shame I'm going to buy 1 more if this one does the same thing I'll know what to write and put as a note.
Good material and loose fit
The elastic at the waist tends to roll on itself, which makes the boxers uncomfortable in the long run. Too bad for a product designed for trekking...
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
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
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Men's Mountain Backpacking Merino Wool Boxer Shorts MT500
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
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.
