Free return under 100 days

Free shipping on £150

Expert Help

Schedule an appointment

+33 1 84 67 14 24

Login

My account

🎁 Christmas - Guaranteed delivery in time for any order before 12/18 🌲 + info here 👉

Brands
Smartwool
Baselayers

Smartwool Baselayers

(11)

Sort by

11 Results

Filter

Men

Women

Smartwool

£25 - £50

£50 - £75

£75 - £100

20% - 30%

30% - 40%

+ 50%

Hiking

Trail running

Running

Skiing

Ski Touring

Trekking

Recycled

Ecomaterial

Responsible Wool Standard

ZQ Merino

Yes

Undershirt

Underpants

Sort by

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

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

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

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

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

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

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

SmartwoolClassic All-Season Merino Base Layer Bottom Boxed - Merino base layer - Women's

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

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

SmartwoolActive Ultralite Hoodie - Merino Wool Jersey - Women's

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 £5 off your first order

E-mail adress

Free shipping on £150Free 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

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

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 £150
100 Days refund policy
Customer service free of charge

© Hardloop 2025
Legal Notice
Terms of Use
Privacy Policy & Data Tracking
Data preferences

More adventures

Hardloop International