Marmot GTX M JacketA shell jacket using GORE TEX Performance technology with persistent moisture permeability, durability and high windproofness, with GORE TEX membrane and nylon backer. A pocket with a water proof zipper that combines design and practicality is placed on the bust part. It is an excellent item for portability with staff sack. [Caution] This product uses a "reverse open fastener". Unlike ordinary fasteners, it is necessary to fully insert the butterfly