We reduced weight without sacrificing durability or comfort. The Men’s Terra Peak Jacket is made for those who don’t let the forecast get in the way of their goals. This jacket is built with THERMOBALL™ insulation for reliable warmth (even when wet) and abrasion-resistant Pertex® Quantum for loft and enhanced thermal performance. Engineered for mobility, the fabric’s four-way stretch allows you to move, without restriction, towards your next objective.