Hot Chillys La Montaña is aptly named: this men's heavyweight thermal is truly our king of the mountain for warmth. The fabric consists of brushed, micro-denier polyester fleece for lighter weight and greater strength and durability. But to ensure this men's thermal base layer top doesn't interfere with your active endeavors, we've placed stretch panels in key areas of this men's thermal zip-t layer for added maneuverability. All of this adds up to one layer that is meant to keep you warm and comfortable, no matter your environment or activity. Its unbeatable combination of practicality and comfort make it the perfect men's fleece for any adventure.

A unique product for those demanding the warmest possible undergarment for winter or mountain sports, the La Montaña zip-t with thumb holes is guaranteed to keep you roasty and toasty.

• Micro-Elite 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
• La Montaña fleece - 100% polyester, Micro-Elite Chamois active zones - 89% polyester, 11% spandex