What Our Gearhead(R) Experts Are Saying: "This in-between layer iswarm, breathable, and just roomy enough to pull over a base. I've been wearing it for everything from morning hikes to lounging at camp. The big grid fleece feels amazing and traps heat without overheating."When the air turns crisp and we need warmth that breathes, we pull on the Mountain Hardwear Summit Grid Big Grid Half Zip. This cozy fleece top is built with soft, blocky grid fleece that traps warmth and allows airflow, striking the perfect balance for hiking, layering, and everyday wear. The relaxed fit makes it easy to layer over a tee or thermal, and the half-zip opening gives us quick venting or coverage depending on the conditions. A kangaroo pocket adds a casual, functional touch, ideal for warming up cold hands or stashing trail snacks. Finished with a hem cinch and classic MHW patch, it's a staple for shoulder season comfort.