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 Men

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

$235.11

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Description

🧥 Elevate your layering game with the ultimate merino wool base set—comfort meets performance in every stitch!

STAY FRESH DRY - Natural moisture-wicking and odor-resistant properties keep you dry and confidently fresh during long days.
THERMAL POWERHOUSE - Midweight 250 g/m² fabric locks in warmth without bulk, perfect for year-round temperature regulation.
BONUS SOCKS INCLUDED - Step up your outdoor game with premium merino wool hiking socks—yours free with every set, a $21 value!
ALL DAY COMFORT ZERO ITCH - Experience the ultra-soft, superfine merino wool that feels like a second skin—no rubbing, no overheating, just pure comfort.
SUSTAINABLY STYLISH GIFT READY - Packaged with care in cool, eco-friendly wrapping—ideal for gifting or treating yourself to elevated base layers.

This 100% superfine merino wool base layer set for men features a midweight 250 g/m² fabric designed for optimal thermal insulation and breathability. The set includes a long-sleeve top and long johns, plus a complimentary pair of merino wool hiking socks valued at $21. Engineered for all-day comfort with natural moisture-wicking and odor resistance, it’s perfect for active professionals seeking versatile, durable, and stylish thermal underwear. Backed by the Merino.tech Promise, this set fits true to size and is easy to care for with recommended hand washing.

Specifications

ASIN	B09C4VW4YP
ASIN	B0B68BHX2P
Age Range Description	Adult
Apparel Closure Type	Pull On
Apparel Fabric Stretch	Medium Stretch
Apparel Fabric Weight Class	Medium Weight
Best Sellers Rank	#10,374 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #3 in Men's Base Layers
Brand Name	Merino.tech
Collection Name	All
Color	. 250 Black
Customer Reviews	4.6 4.6 out of 5 stars (3,335)
Date First Available	July 11, 2022
Department	mens
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	08062281015526
Import Designation	Imported
Item Type Name	Base Layer Set
Manufacturer Part Number	MST-250
Material Type	Wool
Neck Style	Crew Neck
Number of Items	1
Package Quantity	1
Pattern	Solid
Product Care Instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Size	Large
Sleeve Length Description	Long Sleeve
Sleeve Type	Long Sleeve
Style Name	Modern
Style Number	MST-250
Unit Count	2 Count

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$235.11

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

100% Merino Wool Base Layer Men Set - Thermal Underwear for Men Long Johns

Description

Specifications

Common Questions