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 if you prefer slim fit. For more relaxed fit order size up

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight

Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Lightweight, Midweight, Heavyweight

Product ID: 525962191

🧦Free $21 Merino wool hiking socks included

🧶100% superfine 17.5 micron Merino wool

⚖️Midweight 250 g/m² fabric for perfect thermal balance

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Description

🔥 Elevate your base game with Merino.tech – where comfort meets unstoppable style!

ALL DAY COMFORT ZERO ITCH - Ultra-soft superfine Merino wool keeps you cozy without irritation, perfect for long wear.
YEAR ROUND CLIMATE CONTROL - Naturally regulates body temperature so you stay fresh and comfortable in any season.
EFFORTLESS CARE DURABILITY - Machine washable with lifetime warranty—built to last and maintain performance.
VERSATILE STYLE PROTECTION - Form-fitting base layer with UPF 50+ sun protection, perfect from office to outdoor adventure.
ODOR RESISTANT MOISTURE WICKING - Stay dry and stink-free during multi-day wear—ideal for travel and active lifestyles.

The Merino.tech Merino Wool Base Layer Set for men features 100% superfine 17.5 micron Merino wool in a midweight 250 g/m² fabric, delivering superior thermal regulation, moisture-wicking, and odor resistance. This itch-free, breathable long sleeve and long johns combo includes a free pair of premium Merino wool hiking socks, making it a versatile, durable, and stylish choice for year-round wear backed by a lifetime warranty.

Specifications

ASIN	B09C4WJ38S
ASIN	B09C4WJ38S
Age Range Description	Adult
Apparel Closure Type	Pull On
Apparel Fabric Stretch	Medium Stretch
Apparel Fabric Weight Class	Medium Weight
Best Sellers Rank	#596,921 in Clothing & Accessories ( See Top 100 in Clothing & Accessories ) #2,034 in Men's Base Layers & Compression #4,080 in Men's Skiing Clothing #11,397 in Men's Innerwear
Brand Name	Merino.tech
Collection	All
Colour	. 250 Black
Customer Reviews	4.6 4.6 out of 5 stars (622)
Date First Available	30 October 2021
Department	Men
Fabric Type	Merino Wool
Fit Type	Regular
Fit to Size Sentiment	Fits True To Size
Garment Size Country	United States
Generic Name	Base Layer Set
Item Type Name	Base Layer Set
Item Weight	608 g
Item model number	MST-250
Manufacturer Part Number	MST-250
Material type	100% Superfine Merino Wool
Neck Style	Crew Neck
Package Dimensions	35.61 x 26.8 x 6.2 cm; 608 g
Package Quantity	1
Pattern	Solid
Product Care Instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Size	M
Sleeve Type	Long Sleeve
Style Name	Modern
Style Number	MST-250
number-of-items	1

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

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Customer service was outstanding when I had questions about the product.

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B/.712

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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