--- product_id: 256025283 title: "100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather" brand: "merino.tech" price: "$137.94" currency: USD in_stock: true category: "Merino.Tech" url: https://www.desertcart.us/products/256025283-100-merino-wool-base-layer-mens-long-sleeve-thermal-shirts store_origin: US region: United States of America --- # Midweight 230-250 g/m² Thermal Insulation Premium Merino Wool Socks Included 100% Superfine Merino Wool 100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather **Brand:** merino.tech **Price:** $137.94 **Availability:** ✅ In Stock ## Summary > 🧗‍♂️ Elevate your base layer game—comfort, performance, and style that won’t quit. ## Quick Answers - **What is this?** 100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather by merino.tech - **How much does it cost?** $137.94 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/256025283-100-merino-wool-base-layer-mens-long-sleeve-thermal-shirts) ## 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 - • **All-Season Climate Control:** Naturally regulates body temperature for year-round comfort, from winter hikes to office days. - • **Odor-Resistant Performance:** Stay fresh longer with Merino wool’s natural moisture-wicking and odor-blocking properties—no more smelly layers. - • **Ultimate Softness & Comfort:** Ultra-soft 17.5 micron wool ensures itch-free wear all day, every day—ditch the scratchy cotton. - • **Bonus Premium Socks Included:** Step up your outdoor game with high-performance Merino wool socks ($21 value) included in every package. - • **Versatile Layering Essential:** Lightweight to heavyweight options fit seamlessly under any outfit or gear without bulk. ## Overview This 100% superfine Merino wool men's base layer offers midweight thermal insulation (230-250 g/m²) with natural moisture-wicking and odor resistance. Designed for all-season wear, it includes premium Merino wool socks and features a soft, itch-free fabric ideal for hiking, skiing, and everyday use. Machine washable and backed by the Merino.tech promise, it’s a versatile, breathable, and durable essential for active professionals who demand comfort and performance. ## Description 10 Reasons Why Merino.tech merino wool shirt men is Perfect for You! 1. Affordable - Replace your cotton with Merino thermal shirts for men without breaking the bank. 2. Four Season Comfort - Merino thermal underwear for men naturally regulates body temperature to keep you comfortable all year round. 3. Perfect for Travel - Merino thermals for men are ideal for multi-day wear, with no odor and comfort in any climate. This ski base layer for men is naturally wrinkle-resistant 4. Easy Care - Washer/dryer safe. Merino thermal long sleeve men for longer lasting wear, hand wash and lay flat to air dry. 5. Zero Worries - Every Merino.tech Merino thermal base layer men is backed by our Merino.tech promise, so you can feel confident and comfortable with every purchase. 6. Ideal for Daily Wear - Enjoy the comfort and performance of merino wool thermal undershirt for men every day - not just trail days. 7. Great for Layering - Merino wool sweater men are fit for layering without bulk. 8. Itch-Free - Ultra soft 100% Merino wool base layer mens provides all day comfort and no itch! 9. UPF 20 Protection - Thermal merino wool underwear men block harmful sun rays. 10. Great for Any Occasion - Merino wool long sleeve men is perfect for the trail, gym, hunting, fishing, skiing, office, or a night out. Order Your Merino Wool Top Now and Say Goodbye to Smelly Tees! ## Features - Midweight: Mens Merino Base Layer Available in: Lightweight 165 g/m², Midweight 230-250 g/m², Heavyweight 320 g/m² Merino Wool Premium Hiking Socks ($21 Value) – Package includes Men's 250g/m² Merino Wool Base Layer Top Wool Socks. Cool Packaging! Makes A Great Gift! - Super Soft & Comfortable: 100% Superfine 17.5 Merino Wool Mens Base Layer provides all day comfort and no itch! Designed for daily wear without rubbing, overheating, or bunching of regular cotton. - Moisture Wicking & Odor Resistant: Merino base layer mens natural wicking properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh. - Easy Care: Washer safe. For longer lasting wear, hand wash and lay flat to air dry. Merino wool shirt men naturally regulates body temperature to keep you comfortable all year round. - Zero Worries: Every Mens Merino Wool Base Layer we make is backed by our Merino.tech Promise - ensuring you're 100% happy with every Merino.tech purchase. For best results hand wash and lay flat to dry. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08H598Z7N | | ASIN | B0H9Z8XQ2Z | | Age Range Description | Adult | | Apparel Closure Type | Pull On | | Apparel Fabric Stretch | Medium Stretch | | Apparel Fabric Weight Class | Medium Weight | | Apparel Occasion and Lifestyle | Athletic | | Back Style | T Back | | Best Sellers Rank | #17,720 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #3 in Men's Base Layers | | Brand Name | Merino.tech | | Color | 250 Windsor Blue | | Cuff Type | Plain Hem | | Customer Reviews | 4.5 4.5 out of 5 stars (5,634) | | Date First Available | July 22, 2026 | | Department | mens | | Embellishment Feature | No | | Fabric Stretchability | Stretchable | | Fabric Type | 100% Superfine Merino Wool | | Fit Type | Regular | | Fit to Size Sentiment | Fits True To Size | | Garment Size Country | United States | | Global Trade Identification Number | 08062281008320 | | Import Designation | Imported | | Item Length Description | Standard Length | | Manufacturer Part Number | MLS-250 | | Material Type | 100% Superfine Merino Wool | | Model Name | Men Ls | | Neck Style | Crew Neck | | Number of Items | 1 | | Occasion Type | Casual, Hiking, Outdoor, Skiing, Winter Sports | | Pattern | Solid | | Pocket Description | No pocket | | Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended | | Seasons | All | | Shirt Form Type | Sport Jersey | | Sleeve Length Description | Long Sleeve | | Sleeve Type | Long Sleeve | | Sport Type | Hiking, Camping and Hiking, Running, Climbing, Snow Skiing, Snowboarding, Mountaineering, Cycling | | Style Name | Modern | | Style Number | MLS-250 | | Ultraviolet Protection Factor | UPF 50 | | Unit Count | 1 Count | | character | sports | | collar-type | Collarless | | top-style | Shirt | ## Images ![100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather - Image 1](https://m.media-amazon.com/images/I/81UqaW1XFIL.jpg) ![100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather - Image 2](https://m.media-amazon.com/images/I/71k5UU4i8hL.jpg) ![100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather - Image 3](https://m.media-amazon.com/images/I/81Vl+54-s0L.jpg) ![100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather - Image 4](https://m.media-amazon.com/images/I/91yV93yyb9L.jpg) ![100% Merino Wool Base Layer Mens - Long Sleeve Thermal Shirts with Socks | Lightweight, Midweight, Heavyweight Base Layer, Naturally Odor-Resistant, Breathable Shirt, Ideal for Hiking, Cold Weather - Image 5](https://m.media-amazon.com/images/I/81uEi2DknML.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.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lite, Midweight, Heavyweight + Socks - Merino Wool Base Layer Mens Bottom Pants 100% Merino Wool Lightweight, Midweight Thermal Underwear Long Johns + Wool Socks - 100% Merino Wool Ridge Cuff Beanie - Unisex Warm Winter Hat --- ## 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/256025283-100-merino-wool-base-layer-mens-long-sleeve-thermal-shirts](https://www.desertcart.us/products/256025283-100-merino-wool-base-layer-mens-long-sleeve-thermal-shirts) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-11*