The Montane Men's Protium Pull-On Fleece is a high-performance mid-layer designed for active mountain use, providing excellent temperature regulation and moisture management. It is constructed from THERMO GRID fleece fabric (93% Polyester, 7% Elastane) which features a brushed grid backer to trap warm air while wicking sweat away from the body. Technical specifications include a 1​/​3 length YKK front zip for quick ventilation, a high snug collar for protection against the elements, and low-profile flatlocked seams throughout to ensure comfort when layering. The fabric offers 4-way stretch for unrestricted movement during technical climbs or trekking. Approximate weight: 335g.