Free shipping on CHF 150

Free return under 100 days

Expert Help

Schedule an appointment

+33 1 84 67 14 24

Login

My account

Merino Wool Clothing
Merino Wool Base Layers

Merino Wool Base Layers

(430)

Sort by

430 Results

Filter

Boxers & Panties

Merino wool Thermal Tights

Beanies & headbands

Hoodies & jumpers

Merino wool dresses

Merino wool pants & trousers

Merino wool vests & gilets

Merino wool tank tops

Merino wool down jackets

Men

Women

Kids

adidas

Castelli

Craft

Dale of Norway

Devold

Endura

Fjällräven

GripGrab

Helly Hansen

Houdini Sportswear

icebreaker

Kari Traa

Karpos

La Sportiva

Mammut

Millet

Mons Royale

Odlo

Ortovox

Outdoor Research

Rab

Reima

Scott

Smartwool

Soar Running

Sportful

Trollkids

CHF 0 - CHF 25

CHF 25 - CHF 50

CHF 50 - CHF 75

CHF 75 - CHF 100

CHF 100 - CHF 125

CHF 125 - CHF 150

Skiing

Ski Touring

Trekking

Climbing

Travel

Mountaineering

0% - 10%

10% - 20%

20% - 30%

30% - 40%

40% - 50%

+ 50%

Bluesign™

Fair Wear Foundation

Recycled

Ortovox Wool Promise (OWP)

Re-Source

PFC-Free

T-shirt

Débardeur

Tights

Base layers

Merino shirt

Thermal jersey

Yes

No

Yes

No

Sort by

Classic Thermal Merino Base Layer 3/4 Bottom - Merino wool Thermal Tight - Men's

-5% Extra - Code Outdoor5

SmartwoolClassic Thermal Merino Base Layer 3/4 Bottom - Merino wool Thermal Tight - Men's

VAT and custom duties included

Merino 250 Baselayer Crew Boxed - Base layer - Women's

-5% Extra - Code Outdoor5

SmartwoolMerino 250 Baselayer Crew Boxed - Base layer - Women's

VAT and custom duties included

Classic Thermal Merino Base Layer Crew Plus - Merino Wool Jersey - Women's

-5% Extra - Code Outdoor5

SmartwoolClassic Thermal Merino Base Layer Crew Plus - Merino Wool Jersey - Women's

VAT and custom duties included

Intraknit Thermal Merino Base Layer Bottom - Merino wool Thermal Tight - Women's

-5% Extra - Code Outdoor5

SmartwoolIntraknit Thermal Merino Base Layer Bottom - Merino wool Thermal Tight - Women's

VAT and custom duties included

Classic All-Season Merino Base Layer Long Sleeve - Merino base layer - Women's

-5% Extra - Code Outdoor5

SmartwoolClassic All-Season Merino Base Layer Long Sleeve - Merino base layer - Women's

VAT and custom duties included

Classic All-Season Merino Base Layer Long Sleeve - Merino base layer - Women's

-5% Extra - Code Outdoor5

SmartwoolClassic All-Season Merino Base Layer Long Sleeve - Merino base layer - Women's

VAT and custom duties included

Classic All-Season Merino Base Layer Long Sleeve - Merino base layer - Men's

-5% Extra - Code Outdoor5

SmartwoolClassic All-Season Merino Base Layer Long Sleeve - Merino base layer - Men's

VAT and custom duties included

Classic All-Season Merino Base Layer Long Sleeve - Merino base layer - Men's

-5% Extra - Code Outdoor5

SmartwoolClassic All-Season Merino Base Layer Long Sleeve - Merino base layer - Men's

VAT and custom duties included

Merino 250 Baselayer Bottom Boxed - Base layer - Women's

-5% Extra - Code Outdoor5

SmartwoolMerino 250 Baselayer Bottom Boxed - Base layer - Women's

VAT and custom duties included

Intraknit Thermal Merino Base Layer Crew - Merino Wool Jersey - Women's

-5% Extra - Code Outdoor5

SmartwoolIntraknit Thermal Merino Base Layer Crew - Merino Wool Jersey - Women's

VAT and custom duties included

1
...
6
7
8

Our top brands

Patagonia Ortovox Rab La Sortiva Lowa Altra Millet Moon Boot Helly Hansen Barbour Fjällräven Columbia Scarpa Vaude Mammut Julbo New Balance Hanwag Birkenstock Petzl

Our top trending categories

Women's Down jackets Women's Parkas Women's Fleece jackets Men's Down jackets Men's Parkas Men's Fleece jackets Tents Sleeping pads Headlamps Sleeping bags Stoves Hiking backpacks Ice axes Hiking shoes & boots Trail running shoes Running shoes Climbing shoes Kids' Hiking shoes & boots Cycling helmets Kids' carriers Kids' Clothing Kids' Fleece jackets Aigle Kids' Rain shoes Patagonia Fleece jackets Pyrenex Down jackets Helly Hansen Jackets Columbia Fleece jackets Black Diamond Headlamps Meindl Shoes Dakine Backpacks Assos Cycling shorts Giro Helmets Rab Down jackets Dog Harnesses Dog Leads & Leashes Ortlieb Panniers Altra Shoes Buff Neckwear Abus Cycling helmets Patagonia Down Jackets

Need Help?

To choose your waterproof jacket, your trail shoes or to modify an order, contact our HardGuides!

Write to us!

Keep in touch

Be the first to discover our new products, exclusive sales, adventure ideas & tips, and get CHF 5 off your next order

E-mail adress

Free shipping on CHF 100Free return under 100 daysCarbon neutral

Our mission

At Hardloop, we believe that nature and being on the move should be at the very heart of our lives. Whether you're a first-timer or a top athlete, since 2015 we've been sharing with you our love of good gear and our passion for the steep trails we love to run around on.

Read more +

Customer Service

Track my order
Size Charts & Fit Guide
All help topics
Return & refund

Hardloop

Who are we?
HardGuides

Carbon neutral since 2015

Our Footprint
Carbon neutrality
HardGreen selection

Logistics partner

100% secured payment system

Easy Online Shopping

Free delivery from CHF 150
100 Days refund policy
Customer service free of charge

© Hardloop 2026
Legal Notice
Terms of Use
Privacy Policy & Data Tracking
Data preferences

More adventures

Hardloop International