Jack Wolfskin Shirt. Jack Wolfskin Valley ShirtUpdate your outwear collection with this Jack Wolfskin Valley Shirt. Crafted from soft, organic Cotton this shirt features a classic cutaway collar with short sleeves, full button closure, all-over check print and Jack Wolfskin embroidery to complete the look.> Men's Shirt> Short Sleeves> Cutaway Collar> Regular Fit> Full Button Closure> 2 Buttoned Chest Pockets> Buttoned Cuffs> All Over Check Print> Jack Wolfskin Branding> 100% Polyester> Machine Washable at 40 Degrees> Keep Away From Fire