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

100 Merino Wool Base Layer Men Set Thermal Underwear Mens

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

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧥 Elevate your layering game—stay warm, dry, and effortlessly stylish with Merino.tech!

ALL DAY COMFORT ZERO ITCH - Experience the ultra-soft, superfine merino wool that feels like a second skin—no itch, no irritation, just pure comfort.
PERFECT THERMAL REGULATION - Midweight 250gsm fabric expertly balances warmth and breathability, keeping you cozy without overheating in any season.
SUSTAINABLY CRAFTED EASY CARE - Backed by the Merino.tech Promise, this durable set is machine washable and designed to maintain performance and fit wash after wash.
ODOR RESISTANT MOISTURE WICKING - Stay fresh and dry all day with natural wool fibers that wick moisture away and resist odors better than synthetic alternatives.
COMPLETE BASE LAYER SET BONUS SOCKS - Get the full package with top, long johns, and premium hiking socks—your ultimate layering system for outdoor adventures or daily wear.

The Merino.tech Merino Wool Base Layer Men Set features 100% superfine 18.5 micron merino wool in a midweight 250 g/m² fabric, delivering superior thermal regulation, moisture-wicking, and odor resistance. This set includes a long sleeve top, long john bottoms, and a bonus pair of merino hiking socks, making it a versatile and comfortable choice for year-round wear. Designed for durability and easy care, it’s perfect for professionals and outdoor enthusiasts seeking premium performance and all-day comfort.

Specifications

ASIN	B09C4WJ38S
ASIN	B09KDD1Y69
Age Range Description	Adult
Apparel Fabric Stretch	Low Stretch
Apparel Fabric Weight Class	Medium Weight
Best Sellers Rank	12,764 in Fashion ( See Top 100 in Fashion ) 11 in Men's Thermal Sets
Brand Name	Merino.tech
Closure Type	Pull On
Colour	.250 Black Set
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (3,144)
Customer reviews	4.6 4.6 out of 5 stars (3,144)
Date First Available	1 Nov. 2021
Department	Men's
Fabric Type	100% Wool
Fit Type	Loose, fitted
Fit to Size Sentiment	Neutral
Garment Size Country	Great Britain
Item Type Name	Base Layer Set
Manufacturer	Merino.tech
Manufacturer	Merino.tech
Manufacturer Part Number	Merino.tech
Material Type	Wool
Model Number	735
Neck Style	Crew Neck
Number of Items	3
Pattern	Solid
Product Care Instructions	Machine Wash
Season and Collection Year	base layer
Size	M
Sleeve Length Description	Long Sleeve
Sleeve Type	Long Sleeve
Style Name	250gsm Midweight

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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.

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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.

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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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