\n\nKnowing what type of jacket to wear when you're outdoors, you'll need to consider what conditions you usually ski in. Are you going to ski or board in a cold, dry climate or is the ski resort you're heading to warm and wet? What's the temperature change at the start of the day and at the end of the day? Dressing in layers will give you the ability to fine-tune your day on the slopes.\nShell jackets are becoming more and more popular. Shells are generally windproof, waterproof and highly breathable. They are lightweight but remember they have no insulation and you should take into consideration what you're wearing underneath your shell.\n\nHere's a shell jacket that will keep you warm and dry:\nTREW's Cosmic jacket for men is composed of a material called Dermizax, which has a breathability rating better than Gore-Tex and other waterproof materials. The Cosmic has a 2-way adjustable, helmet-compatible hood. Underarm zip vents. Two internal stretch-mesh pockets. two vertical zip chest pockets, one with a headphone cord loop at the collar. They use YKK Aquaguard zippers on all exposed openings and a YKK Aquaguard VISLON center front zipper. The Trew Cosmic is lightweight at just over 26 ounces.\nFor women, TREW offers the Stella jacket. It is also highly breathable, waterproof, and durable Dermizax fabric. The Dermizax membrane gives this jacket excellent waterproof protection against the stormiest weather so you stay dry out on the slopes. The wrist opening is large enough to go over your gloves. The hood is large enough to fit over your helmet.