The Helly Hansen Alpha 3.0 Jacket is designed for performance in the backcountry and beyond. This waterproof, windproof and breathable jacket is constructed with Helly Tech Professional 20k/20k, 4-way stretch fabric and loaded with Primaloft Gold Insulation in the body, and Primaloft Black in sleeves and hood for lightweight warmth in cool weather. Helly Hansen's H2Flow system allows you to regulate your body temperature on the fly and the foldaway hi-vis brim on the removable, helmet-compatible hood allows you to see far and wide on the slopes. The Alpha 3.0 Jacket also features a RECCO Rescue System, water-resistant zippers and a Life Pocket for convenience both on and off the hill. 2-Ply Fabric Construction/4-Way Full Stretch Fabric - 85% Polyamide/15% Elastane, Helly Tech Professional - 20k/20k and DWR Finish, 80g Primaloft Gold Insulation in Body and Primaloft Black 60g in Hood and Sleeves, H2Flow System Mechanical Venting, Detachable, Helmet-Compatible Hood w/Hi-Vis Brim, RECCO Rescue Reflector, Life Pocket w/Primaloft Insulation, Exterior Material: 2-Ply Fabric Construction - 85% Polyamide/15% Elastane, Insulation Weight: 80g Primaloft Black Insulation in Body and Hood/60g in Sleeves, Waterproof Rating: 20,000mm, Breathability Rating: 20,000g, Hood Type: Removable, Pit Zip Venting: Yes, Warranty: Two Year, Type: Insulated, Jacket Fit: Slim, Length: Hip, Insulation Type: Synthetic, Waterproof: High Waterproofing (15,001 - 20,000mm), Breathability: High Breathability (15,001 - 20,000g), Cuff Type: Hook and Loop, Wrist Gaiter: Yes, Warmth Factor: Warm, How Does This Fit?: Slightly Small, Model Year: 2019, Product ID: 495379, Model Number: 65551_110-S, GTIN: 7040055182125