--- product_id: 477779020 title: "100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter" brand: "merino.tech" price: "€ 114.29" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.gr/products/477779020-100-merino-wool-base-layer-mens-pants-thermal-underwear-long store_origin: GR region: Greece --- # Natural odor-resistant & moisture-wicking 17.5 micron superfine merino wool Three weight options: 165, 250, 320 g/m² 100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter **Brand:** merino.tech **Price:** € 114.29 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your winter game with the ultimate merino base layer 🧗‍♂️ ## Quick Answers - **What is this?** 100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter by merino.tech - **How much does it cost?** € 114.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/477779020-100-merino-wool-base-layer-mens-pants-thermal-underwear-long) ## Best For - merino.tech enthusiasts ## Why This Product - Trusted merino.tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay Fresh, Stay Dry:** Natural moisture-wicking and odor resistance keep you dry and confident for days. - • **Tailored Thermal Control:** Choose from lightweight, midweight, or heavyweight to perfectly match your activity and climate. - • **Effortless Care & Durability:** Machine washable and built to last with OEKO-TEX certified fibers—easy maintenance for busy pros. - • **Unmatched Softness & Comfort:** Superfine 17.5 micron merino wool feels like a second skin—no itch, all day comfort. - • **Sustainably Sourced & Certified:** RWS-certified Australian merino wool ensures ethical sourcing and premium quality you can trust. ## Overview These 100% superfine 17.5 micron merino wool men's base layer pants offer three weight options (lightweight 165 g/m², midweight 250 g/m², heavyweight 320 g/m²) to optimize thermal regulation for any cold-weather activity. Naturally moisture-wicking and odor-resistant, they provide all-day comfort without itchiness. OEKO-TEX and RWS certifications guarantee ethical sourcing and safety, while easy machine care fits seamlessly into your active lifestyle. ## Description Won't merino wool feel itchy? And what does 17.5 micron mean? 17.5 micron superfine merino fibers are finer than human hair — too fine to feel itchy, even on sensitive skin. Standard wool (25+ microns) causes irritation; this doesn't. OEKO-TEX certified, tested against 100+ harmful substances. How do I wash and dry it to keep it looking new ? Will it shrink or lose shape? Machine wash cold max 30°C, delicate cycle, inside out. Lay flat to dry — tumble drying permanently damages merino fibers. Store clean and dry; keep merino in sealed bags to prevent moths. Wear 3–5 days between washes — merino resists odor naturally Which weight should I choose — 165, 250, or 320 g/m²? 165 g/m² — active pursuits, travel, spring/summer, 40–60°F. 250 g/m² — cold weather, most outdoor activities, 25–45°F. 320 g/m² — frost and low activity, 10–35°F, extreme conditions. Rule: the higher the activity level — the lighter the weight. Where does the merino wool sourced from and is this product certified? Our products are made from Australian merino wool, RWS certified — independent farm audit confirming animal welfare and land management standards. Every component tested against 100+ harmful substances under OEKO-TEX Standard 100. Does it fit true to size? Choose your regular size. For a snug layering fit under jackets or ski gear, size down one Merino Wool Top Merino Wool Set Merino Wool Half Zip Merino Wool T-Shirt Mens Merino Wool Hoodie Merino Wool Tank Top Men Merino Wool Hiking Socks ## Features - Midweight: Mens Merino Base Layer Available in: Lightweight 165 g/m², Midweight 250 g/m², Heavyweight 320 g/m². Merino Wool Hiking Socks ($21 Value!) - Midweight Merino Wool Pants for Men 250 g/m² and Wool Socks. Cool Packaging! Makes A Great Gift! - Super Soft & Comfortable: 100% Superfine 17.5 Micron Merino Wool Underwear Mens provide all day comfort and no itch! Designed for daily wear without rubbing and overheating of regular cotton. - Moisture Wicking & Odor Resistant: Merino long underwear mens natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh. - Easy Care: Washer/dryer safe. For longer lasting wear, hand wash and air dry. Midweight Merino Wool Base Layer Mens naturally regulates body temperature to keep you comfortable all year round. - Zero Worries: Every Merino.tech Merino pants thermals for men we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0B8SP5PPG | | Best Sellers Rank | #4 in Men's Thermal Underwear Bottoms | | Date First Available | June 22, 2021 | | Department | mens | | Item Model Number | 165 | | Package Dimensions | 10 x 9 x 0.7 inches; 4.8 ounces | ## Images ![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter - Image 1](https://m.media-amazon.com/images/I/61kAQvSBMhL.jpg) ![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter - Image 2](https://m.media-amazon.com/images/I/71+NUxCZTJL.jpg) ![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter - Image 3](https://m.media-amazon.com/images/I/81dqxCarGoL.jpg) ![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter - Image 4](https://m.media-amazon.com/images/I/81Vl+54-s0L.jpg) ![100% Merino Wool Base Layer Mens Pants - Thermal Underwear Long Johns | Lightweight, Midweight, Heavyweight Base Layer, Breathable Leggings, Odor-Resistant Wool, Ideal for Hiking, Skiing, Winter - Image 5](https://m.media-amazon.com/images/I/51CBp2ygLcL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent comfort while keeping you warm, designed for men. *by on Reviewed in the United States June 21, 2026* Wore these while ocean fishing in Alaska. Fantastic product. Keep me warm through three days of rainy and cold weather without hindering my movement. Most importantly it has a fly which for some reason many competitors products do not. I am 6’2” tall and weigh 208 lbs and extra large fit well. ### ⭐⭐⭐⭐⭐ Extremely Comfortable *by on Reviewed in the United States February 19, 2024* I absolutely love these. Bought the matching set and both top/bottom are great. I wear the bottoms all the time because they are so cozy. On really cold days I wear them out under my pants, but I wear them consistently under my pajamas at home. Super soft and not itchy at all. I own lots of other merino wool clothing and I feel that these are the best value. It's very soft yet isn't too delicate. Thick so they're warm, but like all 100 percent wool, will wick away sweat and doesn't stink even if not washed regularly. The "Large" size that I purchased is exactly what I expected for large and fits me perfectly. 5'10" 180lbs. and I wear 32"X32" jeans. The elasticity is good enough to comfortably fit at least a 36" waist. I have 2 sets and will definitely purchase the pants again when these wear out. ### ⭐⭐⭐⭐⭐ Warm, and Good for Layering, and Great for Cold Rides! *by on Reviewed in the United States April 30, 2025* I picked up the medium black 250 and it’s been perfect for cold weather riding and chilly workdays. I’m 5'10" and 180 lbs, and while the fit is a bit loose, the length is perfect. After 2 years of regular use, it’s still going strong—just a minor hole at the ankle, easily hidden by socks.Pros:✅ Great Cold-Weather Warmth (250 Weight) – Warm enough that I haven’t needed to upgrade to 320✅ Ideal for Motorcycle Rides & Cold Work Days – Keeps me warm without bulk✅ Socks Are High Quality – Cozy and well-made✅ Durable Over Time – Still in good shape after 2 yearsCons:❌ Slightly Loose Fit (Medium on 5'10", 180 lbs) – Not overly baggy, just not snug❌ Minor Wear – Small hole near ankle, but nothing majorFinal Thoughts:Whether you’re riding in the cold or braving freezing temps at work, this base layer does the job exceptionally well. Warm, breathable, and built to last—an excellent investment for cold-weather comfort. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/477779020-100-merino-wool-base-layer-mens-pants-thermal-underwear-long](https://www.desertcart.gr/products/477779020-100-merino-wool-base-layer-mens-pants-thermal-underwear-long) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-18*