A good baselayer is the foundation to a great day's hiking, whether it be in the Mournes or on Mt. Fuji. Our extensive baselayer collection gives you products for all conditions, whether it be unbeatable heating with the Heatrub Ultimate or adaptable warmth with the Heatrub Move baselayer, selected by Country Walking Magazine in their Gear of the Year awards for 2021. Plus, we've got super cool cold products to keep your temperature down in the summer heat too.