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

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

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AR$361160

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate your base game with Merino.tech – where warmth meets next-level comfort! 🧶

STAY FRESH STAY DRY - Advanced moisture-wicking and odor-resistant properties keep you dry and odor-free all day.
ALL DAY COMFORT ZERO ITCH - Superfine 17.5 Micron Merino Wool for unmatched softness and irritation-free wear.
BONUS HIKING SOCKS INCLUDED - Get a premium pair of Merino Wool hiking socks ($21 value) absolutely free with your set.
EFFORTLESS CARE DURABILITY - Machine washable on delicate cycle with a promise of long-lasting performance and fit.
VERSATILE THERMAL REGULATION - Midweight 250 g/m² fabric balances warmth and breathability for year-round comfort.

This 100% superfine Merino Wool base layer set for men features a midweight 250 g/m² fabric that naturally regulates temperature and wicks moisture, ensuring all-day comfort without itch or odor. The package includes premium Merino Wool hiking socks valued at $21, making it a perfect gift or upgrade for active professionals seeking versatile, breathable thermal underwear. Backed by the Merino.tech Promise, it offers durability and easy care for year-round wear.

Specifications

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	#13,609 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #4 in Men's Base Layers
Brand Name	Merino.tech
Care instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Collection Name	All
Color	. 250 Black
Customer Reviews	4.6 out of 5 stars 3,320 Reviews
Fabric Type	100% Superfine Merino Wool
Fabric type	100% Superfine Merino 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 Part Number	MST-250
Material Type	100% Superfine Merino Wool
Neck Style	Crew Neck
Number of Items	1
Origin	Imported
Package Quantity	1
Pattern	Solid
Product Care Instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Size	Medium
Sleeve Length Description	Long Sleeve
Sleeve Type	Long Sleeve
Style Name	Modern
Style Number	MST-250

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.

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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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AR$361160

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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

2 weeks ago

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

Description

Specifications

Common Questions