--- product_id: 787401678 title: "100% Merino Wool Base Layer Men Set - Thermal Underwear Mens + Hiking Socks" brand: "merino.tech" price: "R3924" currency: ZAR in_stock: true reviews_count: 13 category: "Merino.Tech" url: https://www.desertcart.co.za/products/787401678-100-merino-wool-base-layer-men-set-thermal-underwear-mens store_origin: ZA region: South Africa --- # Midweight 250 g/m² thermal insulation Includes premium Merino hiking socks ($21 value) 100% superfine 17.5 micron Merino wool 100% Merino Wool Base Layer Men Set - Thermal Underwear Mens + Hiking Socks **Brand:** merino.tech **Price:** R3924 **Availability:** ✅ In Stock ## Summary > 🧗‍♂️ Elevate your base game: Stay warm, dry, and fresh—always on the move! ## Quick Answers - **What is this?** 100% Merino Wool Base Layer Men Set - Thermal Underwear Mens + Hiking Socks by merino.tech - **How much does it cost?** R3924 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/787401678-100-merino-wool-base-layer-men-set-thermal-underwear-mens) ## 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 - • **Durable & Easy Care:** Machine washable with lifetime warranty—built to last through every adventure. - • **All-Day Comfort, No Itch:** Ultra-soft superfine Merino wool ensures itch-free wear from dawn to dusk. - • **Complete Base Layer Set + Socks:** Top, long johns, and hiking socks included for head-to-toe thermal performance. - • **Odor-Resistant & Moisture-Wicking:** Stay fresh and dry with natural wool that outperforms synthetic fabrics. - • **Year-Round Temperature Regulation:** Midweight 250 g/m² fabric adapts to keep you warm in winter and cool in summer. ## Overview This 100% superfine Merino wool midweight base layer set for men includes a long sleeve top, long johns (250 g/m²), and premium Merino hiking socks. Designed for superior thermal regulation, moisture-wicking, and odor resistance, it delivers all-day comfort without itch or bulk. Perfect for year-round wear, travel, and outdoor activities, it combines durability with easy care and a lifetime warranty, making it a smart investment for the modern professional who demands performance and style. ## Description 10 Reasons Why merino.tech Merino Wool Underwear Men Set Is Perfect for You! 1. Affordable - Replace your cotton with thermal Merino Base Layer Men - without breaking the bank! 2. Four Season Comfort - Mens Merino Wool Base Layer Set regulates body temperature to keep you comfortable all year round. It's a perfect merino base for every day! 3. Perfect for Travel - Merino Base Layers mens bottoms and tops are ideal for multi-day wear with no stink and comfort in all climates. Wrinkle resistant, which makes them a perfect merino wool thermals men set. 4. Easy Care - Washer/dryer safe. For longer lasting wear, hand wash and lay flat to air dry. 5. Lifetime Warranty - All Merino.tech Merino Wool Thermal Underwear is covered by our Lifetime Warranty. 6. Ideal for Daily Wear - Enjoy the comfort and performance of Merino Wool Set of long sleeve top and long johns wool every day - not just trail days. 7. Great for Layering - Merino baselayer wool thermal is form fit for layering without bulk. 8. Itch-Free - Ultra soft 100% Merino Thermal wool underwear men set provides all day comfort and no itch! 9. UPF 50+ Protection - Thermal merino long johns set for men blocks out harmful rays from the sun. 10. Great for Any Occasion - Fit for the trail, gym, hunting, fishing, skiing, office, or night out. Order Your Merino Wool Thermal Base Layer Set Now and Say Goodbye to Smelly Tees! Click "Add To Cart" and "Buy Now" Review: Great set, warm, dry and comfy. - I have two of those in 250 and 320 grade and different shades of blue, so extremely happy to please my OCDs :D Really good fit - both in M fit me well with some room to spare, and I'm usually between S and M in common brands. Had them on on several hikes of various strain and length, and can't fault so far. Keeps me warm, dry and absorbs next to none of body or antiperspirant odour. Perfect buy for layering and honestly the top looks good on it's own if you really need to shed layers. So far they seem to be surviving washing without issues (wool liquids, wool mode, two spin cycles, dry flat on a towel on a rack) so fingers crossed for durability that it holds for a long while. In case you wonder, yes there is actually a weight difference between the grades :D If I recall right there was around 400g difference from 250 to 320 set when I weighted it. I might get one more set just in case for spares if it comes on a good discount :) Review: Feeling dry in wet - a high quality base layer - If you never tried merino base layer, you may not know what you are missing! The theory is that when wool is worn directly on the skin with cotton as the second layer, then the moisture migrates into the cotton layer straight through the wool making you feel dry and warm. It is a kind of feeling dry while wet effect. Merino wool is thin and gentle, does not bite, and stays odour-free for long. It is much thinner than usual sweaters and can be worn under a regular size shirt or jeans. This garment is true to size, and is stretchable horizontally, so it is likely to fit well. Its overall quality is quite good. I wore it during the recent blizzard, and it felt nice. The top looks good on its own and can be worn as the only layer for exercise, but they sell merino T-shirts for this. The fabric is not strong enough for wearing a backpack directly over it. It is a gentle fabric, so try to not stain it with eggs, fat, etc., because it can't tolerate strong detergents. Wool also dislikes bleach, high alkalinity substances, hot water (causes shrinking) and rubbing (causes felting). I usually minimise use of detergents, because wool is made of protein covered with fat (lanoline), and you may not want to de-grease that fat. So, just dip it in lukewarm water (25C), possibly with a small amount of wool detergent, or shampoo, or nothing, swish it a bit by hand, and then lay out flat to dry on a large towel. In a couple of hours hang it out, but not on a heater. It dries fast, quicker than cotton. Wool does not contain carbohydrates, like cellulose in cotton, which feed smelly bacteria. Healthy human sweat is composed of water-soluble compounds with added anti-bacterial substances, so washing wool is easy. I am using a merino T-shirt for in-doors exercise as well, but it is a different story. ## Features - Midweight - Merino Wool Base Layer men set Available in: Lightweight = 165 g/m², Midweight = 250 g/m², Heavyweight = 320 g/m². Merino Wool Hiking Socks ($21 Value!) – Package includes Merino wool Midweight base layer mens top and wool long johns 250 g/m² + Merino Wool Hiking Socks. Makes A Great Gift! - Super Soft & Comfortable – 100% Superfine 17.5 Micron Merino Base Layer Men Set provides all day comfort and no itch! Designed for daily wear without rubbing, overheating, or bunching of regular cotton. - Moisture Wicking & Odor Resistant – Wicking and odor-resistant properties of Thermal Merino Wool Underwear men 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. Merino Wool Long Johns sets for men regulate body temperature to keep you comfortable all year round. - Don't worry: thanks to high-quality craftsmanship and the durable structure of merino wool, this Mens Merino Base Layer features exceptional durability. It is ideal as Thermal Underwear Mens – so you will be 100% satisfied with every purchase. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09T6PTR88 | | Age Range Description | Adult | | Apparel Fabric Stretch | Medium Stretch | | Apparel Fabric Weight Class | Medium Weight | | Best Sellers Rank | 18,869 in Fashion ( See Top 100 in Fashion ) 15 in Men's Thermal Sets | | Brand Name | Merino.tech | | Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended | | Closure Type | Pull On | | Colour | 250 Cobalt Blue Set | | Country Of Origin | China | | Country of origin | China | | Customer Reviews | 4.6 out of 5 stars 3,415 Reviews | | Fabric Type | 100% Wool | | Fit Type | Regular | | Fit to Size Sentiment | Fits True To Size | | Garment Size Country | United States | | Import Designation | Imported | | Item Type Name | Base Layer Set | | Manufacturer | Merino.tech | | Manufacturer Part Number | MST-250 | | Material Type | Wool | | Material composition | 100% Wool | | Model Number | MST-250 | | Neck Style | Crew Neck | | Number of Items | 1 | | Pattern | Solid | | Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended | | Season and Collection Year | All | | Size | M | | Sleeve Length Description | Long Sleeve | | Sleeve Type | Long Sleeve | | Style Name | Modern/Fitted | | Unit Count | 3.0 count | | item-package-quantity | 1 | ## Images ![100% Merino Wool Base Layer Men Set - Thermal Underwear Mens + Hiking Socks - Image 1](https://m.media-amazon.com/images/I/61v0fWnssrL.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 ### ⭐⭐⭐⭐⭐ Great set, warm, dry and comfy. *by P***R on 28 November 2025* I have two of those in 250 and 320 grade and different shades of blue, so extremely happy to please my OCDs :D Really good fit - both in M fit me well with some room to spare, and I'm usually between S and M in common brands. Had them on on several hikes of various strain and length, and can't fault so far. Keeps me warm, dry and absorbs next to none of body or antiperspirant odour. Perfect buy for layering and honestly the top looks good on it's own if you really need to shed layers. So far they seem to be surviving washing without issues (wool liquids, wool mode, two spin cycles, dry flat on a towel on a rack) so fingers crossed for durability that it holds for a long while. In case you wonder, yes there is actually a weight difference between the grades :D If I recall right there was around 400g difference from 250 to 320 set when I weighted it. I might get one more set just in case for spares if it comes on a good discount :) ### ⭐⭐⭐⭐⭐ Feeling dry in wet - a high quality base layer *by P***M on 20 November 2025* If you never tried merino base layer, you may not know what you are missing! The theory is that when wool is worn directly on the skin with cotton as the second layer, then the moisture migrates into the cotton layer straight through the wool making you feel dry and warm. It is a kind of feeling dry while wet effect. Merino wool is thin and gentle, does not bite, and stays odour-free for long. It is much thinner than usual sweaters and can be worn under a regular size shirt or jeans. This garment is true to size, and is stretchable horizontally, so it is likely to fit well. Its overall quality is quite good. I wore it during the recent blizzard, and it felt nice. The top looks good on its own and can be worn as the only layer for exercise, but they sell merino T-shirts for this. The fabric is not strong enough for wearing a backpack directly over it. It is a gentle fabric, so try to not stain it with eggs, fat, etc., because it can't tolerate strong detergents. Wool also dislikes bleach, high alkalinity substances, hot water (causes shrinking) and rubbing (causes felting). I usually minimise use of detergents, because wool is made of protein covered with fat (lanoline), and you may not want to de-grease that fat. So, just dip it in lukewarm water (25C), possibly with a small amount of wool detergent, or shampoo, or nothing, swish it a bit by hand, and then lay out flat to dry on a large towel. In a couple of hours hang it out, but not on a heater. It dries fast, quicker than cotton. Wool does not contain carbohydrates, like cellulose in cotton, which feed smelly bacteria. Healthy human sweat is composed of water-soluble compounds with added anti-bacterial substances, so washing wool is easy. I am using a merino T-shirt for in-doors exercise as well, but it is a different story. ### ⭐⭐⭐⭐⭐ Merino tech *by W***R on 26 December 2025* Bought 2 of these. Followed the sizing guide. They don’t seem true to size. . When put on you could feel the cold. As if the material was been overstretched and opening the fabric up to let the cold draughty air in. So Returned these. And went up a size. Then Bought large, the next size up and now they are super comfy and warm, really love them. And they look good, and hug the body nicely looking to buy another one if they come down in the January sales --- ## 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.co.za/products/787401678-100-merino-wool-base-layer-men-set-thermal-underwear-mens](https://www.desertcart.co.za/products/787401678-100-merino-wool-base-layer-men-set-thermal-underwear-mens) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-02*