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Forclaz Women's Trek 500 Zip Collar Merino Wool Long Sleeve Shirt
Wool is ideal for a trek:this soft, robust, breathable material keeps your body at a comfortable temperature in any season (even in summer!) and allows you to trek without having to worry about odors.
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San Francisco, 735 Market St. Options
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About this item:
- Odor Control: The Merino Wool (86%) naturally helps prevent unpleasant odors.
- Warmth: T-shirt made of Merino wool (6.7 oz/m²) to provide additional warmth.
- Softness: Ultra-fine (18.5 microns) Merino Wool. It’s very soft and doesn't itch.
- Weight: 7.9 oz in size S.
Product Videos
Product Features

Odor control
The Merino wool (86%) naturally helps prevent unpleasant odors.
Warmth
T-shirt made of Merino wool (6.7 oz/m²) to provide additional warmth.
Durability
Use of wool fiber surrounded by polyamide yarn for protection.
Moisture wicking
The significant absorption capacity of the wool keeps the body dry.
Breathability
Merino wool is breathable and helps maintain the right body temperature.
Weight
This T-shirt weighs 7.9 oz in size S.
Softness
Ultra-fine (18.5 microns) Merino wool. It’s very soft and doesn't itch.
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Product Customer Reviews

Would like to find 100 for 100 merino but this one is very good
Used in hiking and mountain bivouac in cool weather, cold even at night, warmth, comfort, I am delighted with my purchase
I 100% validate the product. I take it on a trek or roadtrip! I don't have to wash it every 4 mornings for the smell, because it doesn't smell! I even wear it sometimes to work because I find it pretty
I have several Decathlon products made from merino. I bought this sweater in May, and I really like the material in terms of thermal comfort and smells. On the other hand, I am really disappointed by the resistance of the mesh: two have already failed under the armpit this summer! Really disappointed because I have a merino t-shirt from Décath which is still impeccable 7 years after purchase, and I usually use my clothes for many years.
Keeps you warm and light at the same time
The style is very good, but the location of the label is not good
Comfortable, lightweight…..very practical
Can be used as a base layer or 2nd layer
Used during a 7 day trek, very light top, dries really fast and really reduces odors
a little too close to the body for me in the arms
The sleeve seams all came undone after the first wash.
Easy to wear, high CP value, sweat does not smell bad
Good quality product
Alright
Very hot
Size Guide

Additional Product Information
Composition
Main fabric: 86.0% Wool, 14.0% Polyamide ; Yoke: 98.0% Wool, 2.0% Polyamide
How did we improve the durability of our t-shirt?
We have used a beta-spun yarn structure in which the polyamide threads coat the Merino wool fibers. This protects them from rubbing and cuts without affecting their properties.
How does wool reduce the proliferation of bad odors?
Wool from Merino sheep naturally controls the spread of bacteria that cause bad odors. It can therefore be wornseveral days in a row, which means you can take less clothes when backpacking!
Reducing the ”freezing effect”
After any physical effort that involves a lot of perspiration, wool helps to preserve the body temperature while synthetic fabrics cause the temperature to drop faster. The unpleasant cooling or ”freezing effect” is therefore reduced by the Merino wool.
Do you have a final word of advice before using it?
For a softer feel, wash your T-shirt before 1st use.
How to wash your merino wool t-shirt
We recommend that you machine wash your Merino wool T-shirt at 86°F on a normal cycle, preferably with liquid detergent. Dry flat. NEVER tumble dry unless you want to end up with a Merino T-shirt fit only for a doll!For more information:Visit our website
Product testing
The Trek 500 Zip T-shirt was tested by 9 users in the Massif des Bauges in October 2019. These testers, who are independent of Decathlon, were accompanied by our design teams: Maïté, our product engineer, Mélanie, our designer, and myself, the product manager.For 5 days, we tested this T-shirt together in cold, snowy conditions, with some fine days of walking and a number of nights in a bed-and-breakfast or bivouac.We used this test to validate the product in 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.
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Research and development
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Forclaz Women's Trek 500 Zip Collar Merino Wool Long Sleeve Shirt
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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.
