The two-way YKK zipper has a generous drift tube on the side as well as a flap to prevent wind chill effect *Note* The fabrics, zippers, and accessories are all tested in European labs for conformity to EN ISO standards to ensure functionality in -60°C temperature conditions.
Outer shell: 300T ripstop Polyester fabric
Inner Lining: 210T Polyester
Insulation: 100% Hollow fiber
TID ratings as per ISO 13937 tests: Comfort: -8° C, Transition: -15°C; Critical: -20°C