Stormtech nautilus shell jacket Lightweight and soft shell jacket for men. The jacket has a water repellent outer shell with a mesh lining as well as extra ventilation in the back for extra comfort. Details include an adjustable waistband, zipped pockets, adjustable velcro closures in the cuffs and a removable hood that can be easily packed away into the collar. On the shoulders, the jacket has reflective details to create extra visibility.