What Our Gearhead(R) Experts Are Saying:"The Polartec 100 1/4-Zip Jacket is my reliable midlayer for cool weather outings. The lightweight fleece feels soft and breathable, while its quick-drying and wicking performance keeps me comfortable on brisk trail runs or during long hikes. Stretch cuffs and the collar seal in warmth, and the quarter zip is perfect for quick ventilation when things heat up."We rely on the Outdoor Research Polartec 100 1/4-Zip Jacket for lightweight warmth and versatility in cool weather. Made with bluesign(R)-approved recycled polyester, this fleece delivers breathable insulation and sustainable comfort on the trail or at the campsite. Its Polartec(R) construction efficiently wicks moisture and dries quickly, keeping us cozy and ready to move. The thoughtful design enhances performance-stretch binding at the cuffs and collar keeps chilly drafts out, while the 10-inch zipper allows on-the-go ventilation. Built for early-morning treks, alpine climbs, and everything in between, this quarter zip is a staple in our layering lineu