
For unbeatable performance and versatility, our Aenergy Light styles solve for a full range of seasons and pursuits. Combining the right touch of warmth with exceptional wicking and breathability, this ultra-light midlayer doubles as a warm base layer to see you through winter ski tours and summer hikes alike. With a deep half zip for optimal ventilation and a laminated pocket to stash essentials, it’s the perfect choice for all who seek maximum performance at minimal weight.

For unbeatable performance and versatility, our Aenergy Light styles solve for a full range of seasons and pursuits. Combining the right touch of warmth with exceptional wicking and breathability, this ultra-light midlayer doubles as a warm base layer to see you through winter ski tours and summer hikes alike. With a deep half zip for optimal ventilation and a laminated pocket to stash essentials, it’s the perfect choice for all who seek maximum performance at minimal weight.

A cozy everyday crew neck. 100% organic cotton combined with a brushed fleece back for softness and next-to-skin comfort. Added elastane in the ribbed cuffs and hem keeps them from loosening over time. Finished with a relaxed fit and small ski-tourer chest graphic, the Mammut Base ML Crew Neck is a casual, comfortable layer for any adventure.