This shirt is great on its own or over a base layer. It features a traditional spread collar, back yoke with side pleats, and convertible sleeves to keep you feeling comfortable This product will be shipped directly from Woolrich and will leave their warehouse in 2-3 business days. Eligible for ground shipping only. 100% Polyester Brushed Twill, 6.75 oz. bluesign(R) Approved Fabric Center Back Length: 31 in. Spread Collar Classic Shirt Tail Chest Patch Pockets with Flaps Velcro Closure Back Yoke with Side Pleats Convertible Sleeves 50 UPF Easy Care Wrinkle Resistant: Fabrics are treated to retain their shape and resist unwanted creasing Quick Dry: Fabrics combine minimal moisture absorption with the capability to facilitate rapid evaporation Wicking: Fabric pulls moisture away from the body to keep you dry Woolrich Adventure Series Modern Fit: Slight ease over the body for casual comfort and ease of movement without bulk. Trimmer across the shoulder, chest, sweep and arm.