Smartwool Men's Classic Thermal Merino Base Layer Bottom Size:S our anatomically padded zones offer

our anatomically padded zones offer reliable protection against impacts and help to prevent foot fatigue

Ergonomic and comfortable thanks to the AIRFIT headband (Petzl patent)

laser-cut with a wasitband-free design offering an ultra-miminal and highly comfortable fit at speed

as collagen accounts for roughly one-third of your body’s protein

You may also use an 18650 battery with the Fenix ALF-18 battery adapter

Smartwool Men's Classic Thermal Merino Base Layer Bottom Size:S our anatomically padded zones offerWe've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our warmest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away. Features Our slim fit is intended to follow the contours of the body Fabric helps combine the moisture management,