Free shipping on CHF 150

Free return under 100 days

Expert Help

Schedule an appointment

+33 1 84 67 14 24

Login

My account

Men's Outdoor Clothing
Men's Sports Underwear
Men's Baselayers

Men's Baselayers

(381)

Sort by

381 Results

Filter

Sports underwear

Men

Women

adidas

Assos

Berghaus

Black Diamond

Bogner Fire + Ice

BV Sport

Castelli

CMP

Columbia

Craft

Dainese

Dale of Norway

Devold

Endura

Falke

Ferrino

GripGrab

Helly Hansen

Houdini Sportswear

icebreaker

Karpos

La Sportiva

Maap

Maier Sports

Maloja

Mammut

Millet

Mizuno

Mons Royale

Mountain Equipment

Mountain Hardwear

Ortovox

Outdoor Research

Patagonia

Poc

Protest

Rab

Rossignol

Smartwool

Soar Running

Sportful

X-Bionic

Trail running

Running

Skiing

Climbing

Daily use

Mountain Bike

CHF 0 - CHF 25

CHF 25 - CHF 50

CHF 50 - CHF 75

CHF 75 - CHF 100

CHF 100 - CHF 125

CHF 125 - CHF 150

0% - 10%

10% - 20%

20% - 30%

30% - 40%

40% - 50%

+ 50%

Bluesign™

Recycled

Origine Européenne Garantie

ZQ Merinos

PFC-Free

ZQ Merino

T-shirt

Top base layer

Thermal jersey

Merino Wool Jersey

Technical jersey

Bottom base layer

No

Yes

Short

Long

Syears

Polygiene®

Polartec® Power Grid

Polartec® Power Grid™

HeiQ Fresh

Breath Thermo®

Capilene®

Sort by

PalfnerM. - Base layer - Men's

-5% Extra - Code Spring5

MalojaPalfnerM. - Base layer - Men's

VAT and custom duties included

Sonic LS Zip - Base layer - Men's

-5% Extra - Code Spring5

RabSonic LS Zip - Base layer - Men's

VAT and custom duties included

Xenair 3/4 Pants - Base layer - Men's

-5% Extra - Code Spring5

RabXenair 3/4 Pants - Base layer - Men's

VAT and custom duties included

Radiactor 4.0 Shirt LG SL - Base layer - Men's

-5% Extra - Code Spring5

X-BionicRadiactor 4.0 Shirt LG SL - Base layer - Men's

VAT and custom duties included

New Hero Classique HZ - Base layer - Men's

-5% Extra - Code Spring5

RossignolNew Hero Classique HZ - Base layer - Men's

VAT and custom duties included

New Hero Classique HZ - Base layer - Men's

-5% Extra - Code Spring5

RossignolNew Hero Classique HZ - Base layer - Men's

VAT and custom duties included

Classic Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

-5% Extra - Code Spring5

SmartwoolClassic Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

VAT and custom duties included

Classic Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

-5% Extra - Code Spring5

SmartwoolClassic Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

VAT and custom duties included

Intraknit Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

-5% Extra - Code Spring5

SmartwoolIntraknit Thermal Merino Base Layer 1/4 Zip - Merino Wool Jersey - Men's

VAT and custom duties included

Classic Thermal Merino Base Layer Bottom - Merino base layer - Men's

-5% Extra - Code Spring5

SmartwoolClassic Thermal Merino Base Layer Bottom - Merino base layer - Men's

VAT and custom duties included

Classic Thermal Merino Base Layer Bottom - Merino base layer - Men's

-5% Extra - Code Spring5

SmartwoolClassic Thermal Merino Base Layer Bottom - Merino base layer - Men's

VAT and custom duties included

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

-5% Extra - Code Spring5

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

VAT and custom duties included

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

-5% Extra - Code Spring5

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 Spring5

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 Spring5

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

VAT and custom duties included

Intraknit Merino 200 Crew - Base layer - Men's

-5% Extra - Code Spring5

SmartwoolIntraknit Merino 200 Crew - Base layer - Men's

VAT and custom duties included

Heatloop Shirt LS - Base layer - Men's

-5% Extra - Code Spring5

X-BionicHeatloop Shirt LS - Base layer - Men's

VAT and custom duties included

Symbio Merino Pants 3/4 - Base layer - Men's

-5% Extra - Code Spring5

X-BionicSymbio Merino Pants 3/4 - Base layer - Men's

VAT and custom duties included

Symbio Merino Pants 3/4 - Base layer - Men's

-5% Extra - Code Spring5

X-BionicSymbio Merino Pants 3/4 - Base layer - Men's

VAT and custom duties included

Symbio Merino Shirt LS - Base layer - Men's

-5% Extra - Code Spring5

X-BionicSymbio Merino Shirt LS - Base layer - Men's

VAT and custom duties included

Wool30 Fuse Longsleeve - Base layer - Men's

La SportivaWool30 Fuse Longsleeve - Base layer - Men's

VAT and custom duties included

1
...
5
6
7

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