Acronym SS-JF1B is built on a zero-resistance fit block for freedom of movement. It features a 2-position collar and a center front zipper that allows for both profile and layering fits. Standard, super-standard ACR features such as ForceLockæ and JacketSlingæ make it a truly contemporary weapon. Wind and water resistant, moisture controlling, heat-retaining, breathable and dynamic (4-way stretch); the Swiss made schoeller® WB-400™ softshell fabric is engineered to take care of you, rather than the other way around. Invulnerable. Go anywhere. Do anything. SS-JF1B will keep up.