For fast, high-output alpine adventures where you need a versatile piece that can keep you dry and stay on your body even when working up some heat, the Marmot Castle Peak Pants are a trailblazer. Made with super breathable Polartec® Alpha® insulation that helps regulate body temperature by being breathable and warm at the same time, the Marmot Castle Peak Pants are comfortable through serious backcountry pursuits, intense resort riding, and everything in between. The breathable-waterproof membrane is super breathable, air-permeable Polartec® Neoshell for epic, summit-worthy performance.

2.3 oz. 100% Nylon Plain Weave

Polartec® Neoshell – An engineering breakthrough for waterproof breathable fabric technologies. Dynamic air exchange at the surface provides the unrivaled ability to stop water and wind permeation without restricted the release of excess body heat and moisture vapor. This highly aerobic air permeability provides the unique benefit to function as a durable protective shell with advanced wicking cap.

Polartec® Alpha® Insulation – Originally developed for the U.S. Special Forces when they required a more advanced insulating material in their combat uniforms. This fabric is a new technology with active insulation that regulates core body temperatures during both dynamic and static activities. This latest advance in adaptable breathability helps eliminate the need of shedding or adding layers while on the move.

Regular Fit

Adjustable Waist with Snap Closure and Zip Fly

Thigh Pockets with Water Resistant Zippers

Hand Pockets with Water Resistant Zippers

Internal and External Leg Vents

RECCO® Avalanche Rescue Reflector

Internal Gaiters with Gripper Elastic

Scuff Guards