Sofshell Winter Jacket Don't fear the cold weather, our Sofshell Wheel Jacket will keep you nice and warm! Sofshell is a wind and water proof Bluesign fabric with interior fleecing. Great for 30+ degrees. We do not seam tape. Full 2 way zip durable YKK for best quality and endless zipping. Flatlock Stitching provides contrast design element & bombproof seams. Grip tape at the waist keeps the jacket in place. Vented Back Panel provides great airflow, maximizing breatheability. Two internal zippered back pockets keep your snacks safe yet accessible.