Men’s Merino Wool Longsleeve | Breathable Training Base Layer
A men’s merino wool longsleeve built for training and layering. Crafted from 98% merino wool and 2% elastane in a 240g jersey knit — breathable, naturally odor resistant, and designed to move with you. OEKO-TEX 100 certified for safe, chemical-free comfort against your skin.
Why Merino Wool for Training
Most long sleeve training tops are made from polyester — a plastic that traps heat, breeds bacteria, and sheds microplastics. This merino wool base layer takes a different approach. Merino wool naturally regulates body temperature, wicking moisture while keeping you warm during cold-weather workouts and cool during indoor sessions. Its natural antibacterial properties resist odor without chemical coatings.
Designed for Everyday Comfort
Raglan sleeves provide full range of motion for any movement — from deadlifts to overhead presses. Flatlock seams eliminate chafing during intense sessions. The 240g jersey weight gives this longsleeve enough substance to wear alone, while remaining light enough to layer under a jacket. A versatile merino base layer that transitions from gym to street without missing a beat.
Why You’ll Love It
- 98% Merino Wool, 2% Elastane — naturally antibacterial, breathable, and temperature regulating
- 240g jersey knit — substantial yet lightweight for training and everyday wear
- OEKO-TEX 100 certified — tested and verified free from harmful substances
- Raglan sleeves — full range of motion for any movement
- Flatlock seams — no chafing, even during intense sessions
- No polyester, no nylon, no microplastics
Perfect For: Gym and strength training | Running and outdoor workouts | Everyday layering
Fit: Regular | True to size
Composition
Main: 98% merino wool, 2% elastane (240g jersey)
Elastic: Natural kauchuk (rubber) + organic cotton
Fit Note
True to size. Designed for a second-skin fit that moves with you.
| Size | EUR | UK | Waist | Hips | Inseam |
|---|---|---|---|---|---|
| S | 44–46 | 30R–32R | 74–82 | 91.5–97.5 | 82 |
| M | 48–50 | 33R–34R | 82–90 | 97.5–103.5 | 83 |
| L | 52–54 | 36R–38R | 90–98.5 | 103.5–109.5 | 84 |
| XL | 56–58 | 40R–42R | 98.5–107.5 | 109.5–115.5 | 84.5 |
| XXL | 60–62 | 44R–46R | 107.5–116.5 | 115.5–121.5 | 85 |
(in cm).
Care
Machine wash cold (30°C) on wool cycle. Use wool-specific detergent. Do not tumble dry. Reshape while damp and dry flat.
Made in Poland
Shipping Policy
Orders are processed and shipped within 5-7 business days from our facility in Poland. You'll receive a shipping confirmation email with tracking information once your order has shipped.
Switzerland courier delivery - CHF 100; free above orders of CHF 200
EU countries courier delivery - CHF 10
UK courier delivery - CHF 10; free above orders of CHF 200
US courier delivery - CHF 20; free above orders of CHF 200
Customs & Import Duties
For orders shipped outside the European Union, the recipient is responsible for any customs duties, import taxes, or brokerage fees that may apply. These charges vary by country and are determined by your local customs authority.
(soon, orders to Switzerland will be customs free. At the moment, you can benefit from a store credit equal to the customs you pay, to use on future orders at Swiss Impact Store.)
Refund Policy
Once we receive your return, we'll inspect the items and process your refund within 5-7 business days. Refunds are issued to your original payment method.
Non-Returnable Items
For hygiene reasons, underwear and swimwear with the hygiene seal removed cannot be returned. Sale items marked as "Final Sale" are also non-returnable.
Cancellation / Return / Exchange Policy
We offer returns within 30 days of delivery. Items must be unworn, unwashed, and in their original condition with all tags attached.
How to Return
- Email us at [email protected] with your order number and reason for return or
- The brand will confirm your return and provide the return address
- Pack your items securely in the original packaging if possible
- Ship your return using your preferred carrier (return shipping costs are covered by the customer)
Exchanges
For exchanges (different size or color), please return your original order and place a new order for the desired item. This ensures the fastest processing time.








