The Gill 1513 i5 Crosswind Jacket is a very versatile jacket as a mid-layer or as an outer layer in light conditions. Perfect for sailing and ice fishing! The Gill Crosswinds Jacket is constructed from Gill's 2 Dot™ waterproof and breathable laminated fabric with fully taped seams and a fully lined ultra-compact synthetic thermal insulation to keep you warm...even when wet!