Columbia Men's Whirlibird V Interchange JacketThese 3 in 1 jackets include a weatherproof shell and an insulated inner layer for added warmth. Each can be worn separately in mild conditions or combined for maximum storm fighting power. Omni Tech critically seam sealed prevents moisture from seeping into essential areas while using waterproof breathable fabric, so you stay dry and comfy in wet conditions Omni Heat thermal reflective breathable lining retains warmth using silver dots that reflect