This heavyweight thermal base layer is aptly named, as it is king of the mountain for warmth and mobility. Stretch panels in key areas ensure your movement is unrestricted so this piece is ideal for any winter or mountain sport.

Features:

• ME Chamois gussets under arms and at cuffs for a closer fit and increased performance
• Extended cuffs with thumb holes
• Zip pocket on the chest
• Zip through collar with interior wind flap for ultimate warmth
• Micro-denier polyester fibers for lighter weight, luxurious drape, breath-ability, strength and durability
• MTF polyester moisture transfer fibers for increased moisture management
• UPF 40 protection
• Mountain weight, active fit