--- product_id: 747540684 title: "Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight" brand: "merino.tech" price: "AR$51648" currency: ARS in_stock: false reviews_count: 5 url: https://www.desertcart.com.ar/products/747540684-merino-tech-merino-wool-base-layer-mens-100-merino-wool store_origin: AR region: Argentina --- # Free Merino Wool Hiking Socks ($21 Value) 100% Superfine Merino Wool Lightweight to Heavyweight Options (165-320 g/m²) Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight **Brand:** merino.tech **Price:** AR$51648 **Availability:** ❌ Out of Stock ## Summary > 🧥 Elevate your base game — comfort, performance, and style in one sleek layer! ## Quick Answers - **What is this?** Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight by merino.tech - **How much does it cost?** AR$51648 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/747540684-merino-tech-merino-wool-base-layer-mens-100-merino-wool) ## 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 - • **Odor-Resistant Performance:** Stay fresh longer with natural moisture-wicking and odor control - • **Bonus Hiking Socks Included:** Exclusive free $21 value socks with every heavyweight base layer set - • **Ultimate Softness & Comfort:** 19.5 micron superfine wool ensures itch-free, all-day wear - • **Versatile Layering Essential:** Form-fitting base layer perfect for work, gym, travel, and outdoor adventures ## Overview The Merino.tech Merino Wool Base Layer Set for men features 100% superfine 19.5 micron merino wool available in lightweight, midweight, and heavyweight options (165-320 g/m²). Designed for all-season wear, it naturally regulates temperature, wicks moisture, and resists odor, making it ideal for hiking, travel, sports, and daily use. Each heavyweight set includes a free pair of premium merino wool hiking socks ($21 value). Backed by a lifetime warranty and crafted for itch-free comfort, this base layer is a versatile, durable essential for the modern active professional. ## Description 10 Reasons Why Merino.tech Merino Wool Shirts for Men are Perfect for You! 1. Affordable - Replace your cotton with Midweight Merino Wool Base Layer Mens - without breaking the bank! 2. Four Season Comfort - Men Wool Base Layer naturally regulates body temperature to keep you comfortable all year round. 3. Perfect for Travel - Merino Long Sleeve Mens are ideal for multi-day wear with no stink and comfort in all climates. Lightweight and naturally wrinkle resistant. 4. Easy Care - Washer/dryer safe. For longer lasting wear, hand wash and lay flat to air dry. 5. Lifetime Warranty - All Merino.tech Products are covered by our Lifetime Warranty. 6. Ideal for Daily Wear - Enjoy the comfort and performance of merino wool base layer mens lightweight every day - not just trail days. 7. Great for Layering - Merino wool long sleeve shirt mens is form fit for layering without bulk. 8. Itch-Free - Ultra soft 100% Merino Wool shirt mens long sleeve provides all day comfort and no itch! 9. UPF 50+ Protection - Merino Wool Lightweight Base Layer Mens blocks out harmful rays from the sun. 10. Great for Any Occasion - Take your mens merino wool undershirt for the trail, gym, hunting, fishing, skiing, office, or night out. Order Your Merino Wool Base Layer Top Now and Say Goodbye to Smelly Tees! Click " Add To Cart " and " Buy Now " ## Features - Heavyweight: Mens Merino Base Layer Available in: Lightweight = 165 g/m², Midweight = 250 g/m², Heavyweight = 320 g/m². Free Merino Wool Hiking Socks ($21 Value) – Package includes Heavyweight Merino wool base layer mens top and wool men long johns 320 g/m² + Merino Wool Hiking Socks. Cool Packaging. Makes A Great Gift. - Super Soft & Comfortable: 100% Superfine 19.5 Micron merino wool base layer set mens provides all day comfort and no itch! Merino wool long underwear men set was designed for daily wear without rubbing, overheating, or bunching of regular cotton. - Moisture Wicking & Odor Resistant: Natural wicking and odor-resistant properties of merino wool thermal underwear allow it to absorb moisture better than any other fabric, keeping you dry and fresh. - Breathable – For longer lasting wear, hand wash and lay flat to air dry. Mens wool long johns sets naturally regulate body temperature to keep you comfortable all year round. - Zero Worries: Every we make merino wool base layer top mens and long johns are 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 | B0BDZPYRDQ | | Date First Available | 28 June 2025 | | Department | Men | | Generic Name | Base Layer Set | | Item Model Number | MST-250 | | Item Weight | 170 g | | Manufacturer | Merino.tech | | Net Quantity | 2 Count | | Package Dimensions | 35.4 x 26.8 x 6.2 cm; 170 g | ## Images ![Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight - Image 1](https://m.media-amazon.com/images/I/61oVn52JvDL.jpg) ![Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight - Image 2](https://m.media-amazon.com/images/I/71yAPDqJ6iL.jpg) ![Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight - Image 3](https://m.media-amazon.com/images/I/81Vl+54-s0L.jpg) ![Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight - Image 4](https://m.media-amazon.com/images/I/91yV93yyb9L.jpg) ![Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight - Image 5](https://m.media-amazon.com/images/I/81ScDP8-0jL.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 if you prefer slim fit. For more relaxed fit order size up ## Customer Reviews ### ⭐⭐⭐⭐⭐ Rapport qualité prix imbattable *by on Reviewed in France 22 January 2026* Article reçu dans les temps conforme à la description taille L pour 185m et 70kg impeccablej ai pris un 320g ,super chaud je le test actuellement à 1600m et fait très bien le job .Bon vendeur je conseille avec un très bon rapport qualité prix merci ### ⭐⭐⭐⭐⭐ Even a Sasquatch would like these *by on Reviewed in the United States 9 September 2025* Bought this as gift for my skeptical Salt of the Earth Hubs who was not aware yet of the true superiority that is merino. His face dropped and I had to put his chin back into place when he asked How Much. I was utterly unfazed and ignored his protest. I easily got past his merino gear green inexperience and told him to ‘just try them because these will change your life’ with a grin.To put it short and sweet: He proceeded to basically only take them off to wash over the next five months. His only comment, actually Using His Words: he wanted another set. This, so he always had some clean and multiple weights so he could regulate better and choose depending on the weather forecast for the day he’d be out. I noticed his old synthetics were crumpled in the bottom of his gear bags when he’d come home. The merino were always within reach on top, and gasp, folded! High Praise from this man, folks.It should be stated he is THE case for the legitimacy of merino, and these extremely well priced merino sets: he is a heavy equipment operator that works outside on top of mountains in some of the most extreme winter environments on earth and loves it. For you, the reader’s purpose, let’s just agree to put aside the elephant-in-the-room Crazy Factor of that last sentence for now and stick to the underwear. All I can say in his defense is this world takes all types. That’s only important here to mention since he’s not a dude that sits around in it next to a cozy fire all winter sipping from a tea cup. (That’s my job, lol.) This set was put to a legit durability test and in incredibly harsh conditions and stood up.Once prompted for more detail, and translating out of his customary grunts, shrugs and sighs, he said [paraphrasing]: he stopped noticing whether or not his body was cold or hot since he was the perfect temperature all the time and stopped sweating whether in or out of a machine. He didn’t have to wear nearly as many layers in general. He didn’t have to strip ones off or put other ones on depending on where he was and what was happening nearly as much. He stayed warm even when outer gear got wet with frozen sleet driving and he had to move back and forth outside from truck to machine to truck. He wasn’t losing gear and other layers from job sites, trucks, machines or in the snow nearly as much either from stripping off and forgetting. The merino set remained odor free for an entire work cycle between washings so he reused them everyday. They stayed true to fit and didn’t stretch out of shape even wearing for long periods and for multiple days in a row. All day comfort second skin feel. No bunching in the armpits nor crotch. Ordered the 2XL, biggest they offer I think. He’s normally 3XL big and tall, so I wasn’t sure if these would fit but as a first or second layer snug is good. His back and shoulders can be a challenge to find proper fit for and I often tailor his clothes and gear, but these are perfect with long arms and a long torso design to accommodate various sizes and shapes. Spare to tuck in even! Fantastic!: This is important since he sometimes has to do mechanical repair on the fly. On top of a mountain on the machines, before this merino set, his lower back would sometimes come home chaffed and raw from cold exposure from these situations. A red burn from bending over with elements beating on him, not wanting to touch his clothes since his hands and outer gear coated with grease, tucking back is not a desirable option. The winds are basically trying to tear everything off so to have it stay in place and enough fabric to remain tucked in? chef kiss.Going into this next winter season depending on where he is going this year, we’ll get another set at a different weight. He said he wanted that versatility this time. ### ⭐⭐⭐⭐⭐ Perfekt für Läufe bei Minusgraden – hält extrem warm *by on Reviewed in Germany 10 January 2026* Ich nutze das Merino Tech 320 g Set jetzt seit etwa einem Monat täglich für meine Abendläufe. Da es aktuell oft bis zu -6 Grad sind, war der Kauf absolut notwendig.Man merkt sofort, dass es sich um ein schwereres Material handelt, das sich aber extrem weich auf der Haut anfühlt. Nach dem Einlaufen spüre ich die Kälte überhaupt nicht mehr, man kommt sogar eher leicht ins Schwitzen. Mir war besonders wichtig, dass es sich um 100 % Merinowolle handelt und kein Polyester beigemischt wurde. Das zahlt sich aus: Selbst nach dem Sport riecht das Set völlig neutral und nimmt keinen Schweißgeruch an.Ein netter Bonus war, dass dem Paket noch ein Paar kostenlose Merinosocken als Geschenk beilagen.Einziger Minuspunkt: Trotz des hohen Preises treten im Schrittbereich durch die Reibung beim Laufen ziemlich viele Fusseln auf. Das hatte ich in dem Preissegment eigentlich nicht erwartet. Ansonsten ist es aber ein sehr hochwertiges, wenn auch teures Produkt, das sich für echte Winterläufer definitiv lohnt. ## Frequently Bought Together - Merino.tech Merino Wool Base Layer Mens Set - Heavyweight, Midweight, Lite Merino Wool Thermal Underwear For Men Top, Bottom - 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 --- ## 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.com.ar/products/747540684-merino-tech-merino-wool-base-layer-mens-100-merino-wool](https://www.desertcart.com.ar/products/747540684-merino-tech-merino-wool-base-layer-mens-100-merino-wool) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-18*