The perfect combination of incredible comfort and advanced technology, the Icebreaker Ellipse Jacket is a great pick for high-output days in the mountains. MerinoLOFT™ insulation in the chest panels provides a breathable and natural alternative to synthetic insulations. This zip-up jacket features a super-soft and quick-drying waffle fabric that blends merino wool and polyester to actively manage moisture. The zipper chin guard and interior storm flap prevent chafing, and the offset shoulder seams prevent pack rub. A recycled DWR-treated polyester face fabric, zippered hand pockets, and an internal stash pocket complete this versatile piece of outerwear.