--- product_id: 257159471 title: "Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns" brand: "merino.tech" price: "$126.24" currency: USD in_stock: true url: https://www.desertcart.us/products/257159471-merino-tech-100-merino-wool-base-layer-mens-thermal-underwear store_origin: US region: United States of America --- # Midweight 250 g/m² for optimal thermal regulation 100% Superfine 17.5 Micron Merino Wool Natural moisture-wicking & odor-resistant Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns **Brand:** merino.tech **Price:** $126.24 **Availability:** ✅ In Stock ## Summary > 🧗‍♂️ Elevate your base layer game—comfort, performance, and style that won’t quit. ## Quick Answers - **What is this?** Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns by merino.tech - **How much does it cost?** $126.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/257159471-merino-tech-100-merino-wool-base-layer-mens-thermal-underwear) ## 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-resistant properties keep you dry and odor-free during intense activities or long days. - • **All-Day Comfort, Zero Itch:** Experience ultra-soft superfine Merino wool that feels like a second skin—no irritation, just pure comfort. - • **Thermal Mastery for Every Season:** Midweight 250 g/m² fabric expertly balances warmth and breathability, keeping you cozy without overheating. - • **Gift-Ready Packaging + Bonus Socks:** Comes with premium Merino wool hiking socks ($21 value) and stylish packaging—perfect for gifting or upgrading your own gear. - • **Effortless Care, Lasting Performance:** Machine washable and durable, designed to maintain softness and fit wash after wash—because your time is valuable. ## Overview These 100% superfine Merino wool midweight base layer pants deliver superior thermal regulation and moisture management for all-season comfort. Designed with a modern fitted style and medium stretch, they provide itch-free wear and durability, backed by Merino.tech’s satisfaction promise. Ideal for hiking, skiing, and active lifestyles, they come with bonus Merino wool socks and gift-ready packaging. ## Description 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 | #5 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 ![Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns - Image 1](https://m.media-amazon.com/images/I/61kAQvSBMhL.jpg) ![Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns - Image 2](https://m.media-amazon.com/images/I/71+NUxCZTJL.jpg) ![Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns - Image 3](https://m.media-amazon.com/images/I/91hsv1e+-wL.jpg) ![Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns - Image 4](https://m.media-amazon.com/images/I/81kgewC0ymL.jpg) ![Merino.tech 100% Merino Wool Base Layer Mens - Thermal Underwear Long Johns - Image 5](https://m.media-amazon.com/images/I/81062uJZ2tL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Won't merino wool feel itchy? And what does 17.5 micron mean?** A: 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. **Q: How do I wash and dry it to keep it looking new ? Will it shrink or lose shape?** A: 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 **Q: Which weight should I choose — 165, 250, or 320 g/m²?** A: 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. **Q: Where does the merino wool sourced from and is this product certified?** A: 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. **Q: Does it fit true to size?** A: Choose your regular size. For a snug layering fit under jackets or ski gear, size down one ## Frequently Bought Together - Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Heavyweight, Midweight, Lite Thermal Underwear Long Johns and Socks - Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Heavyweight, Midweight, Lite with Socks - Merino Wool Base Layer Women Pants 100% Merino Wool Leggings Heavyweight, Midweight, Lite Thermal Underwear Bottom and Socks --- ## 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.us/products/257159471-merino-tech-100-merino-wool-base-layer-mens-thermal-underwear](https://www.desertcart.us/products/257159471-merino-tech-100-merino-wool-base-layer-mens-thermal-underwear) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-17*