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. For a snug layering fit under jackets or ski gear, size down one

100 Merino Wool Base Layer Mens Thermal Underwear Long Johns

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

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Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧗‍♂️ Elevate your base layer game—comfort, performance, and style that won’t quit.

STAY FRESH STAY DRY - Natural moisture-wicking and odor-resistant properties keep you dry and odor-free during intense activities or long days.
ALL DAY COMFORT ZERO ITCH - Experience ultra-soft superfine Merino wool that feels like a second skin—no irritation, just pure comfort.
THERMAL MASTERY FOR EVERY SEASON - Midweight 250 g/m² fabric expertly balances warmth and breathability, keeping you cozy without overheating.
GIFT READY PACKAGING BONUS SOCKS - Comes with premium Merino wool hiking socks ($21 value) and stylish packaging—perfect for gifting or upgrading your own gear.
EFFORTLESS CARE LASTING PERFORMANCE - Machine washable and durable, designed to maintain softness and fit wash after wash—because your time is valuable.

These 100% superfine Merino wool midweight base layer pants deliver superior thermal regulation and moisture management for all-season comfort. Designed with a modern fitted style and medium stretch, they provide itch-free wear and durability, backed by Merino.tech’s satisfaction promise. Ideal for hiking, skiing, and active lifestyles, they come with bonus Merino wool socks and gift-ready packaging.

Specifications

ASIN	B085TH4TV5
Age Range Description	Adult
Apparel Closure Orientation	Front
Apparel Closure Type	Pull On
Apparel Fabric Stretch	Medium Stretch
Apparel Fabric Weight Class	Medium Weight
Apparel Occasion and Lifestyle	Athletic
Best Sellers Rank	#6,233 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #6 in Men's Thermal Underwear Bottoms
Brand Name	Merino.tech
Care instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Closure type	Pull On
Color	.Black 250
Customer Reviews	4.6 out of 5 stars 3,643 Reviews
Fabric Stretchability	Stretchable
Fabric Type	100% Superfine Merino Wool
Fabric type	100% Superfine Merino Wool
Fit Type	Standard
Fit to Size Sentiment	Fits True To Size
Front Pleat Type	Flat Front
Garment Size Country	United States
Import Designation	Imported
Item Length Description	Standard Length
Leg Style	Skinny
Manufacturer Part Number	MP-250
Material Type	100% Superfine Merino Wool
Model Name	Men Pants
Number of Items	1
Occasion Type	Hiking
Origin	Imported
Pants Form Type	Leggings
Pattern	Solid
Pattern Style	Solid
Pocket Description	No Pocket
Product Care Instructions	Machine Wash (Delicate Cycle), Hand Wash Recommended
Rise Style	Mid Rise
Seasons	All
Sleeve Length Description	Long Sleeve
Specific Uses For Product	Hiking, Sports, Yoga
Sport Type	Hiking, Snow Skiing, Snowboarding, Camping and Hiking, Running, Climbing, Mountaineering, Cycling
Style Name	Modern/Fitted
Style Number	MP-250
Team Name	Sports
Ultraviolet Protection Factor	UPF 50
Unit Count	1 Count
Waist Size	33 inches
Weave Type	Knit

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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.

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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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Vikram D.

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

2 weeks ago

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