Proton Crew Pullover Men's narrow mouth Attachment loops for the helmet

Attachment loops for the helmet holder (helmet holder available as accessory)

metal-button closure and a zip fly

The toecover can be worn on its own or as a layer between your shoe and shoecover

Airy and more durable inseam fabric

Proton Crew Pullover Men's narrow mouth Attachment loops for the helmetHikes, approaches, backcountry tours, a day at the crags the exceptionally versatile Proton Crew gives you lightweight warmth, temperature regulating airflow, and freedom to move. Soft and comfortable, ultralight Octa Loft insulations combination of warmth and breathability maintains thermal comfort. The air permeable Fortius Air 50 outer is light, durable, and has performance stretch. A DWR treatment repels moisture. Midlayer or standalone youll wear