Looks can be deceiving. The Men's Prima Pack Jacket may look lightweight from the exterior and even feel exactly the same way, but once it's on, Primaloft Ultra-high loft insulation (120gsm) ensures heat stays close to your body, delivering a high degree of warmth for its weight.?Weft Stretch allows for freedom of movement through the shoulders, making it comfortable for the slopes, trail or backpacking adventures.. . ?. . . 100% Polyester Cire,?120gsm ultra-high loft?. Fill: Primaloft Silver Ultra Hi-Loft. Durable Water-Repellent (DWR) finish to shed rain and snow?. 2 front hand pockets. Lightweight &?packable. EMS logos and branding. Fit: Semi-Fitted. Machine wash. imported. Fair Trade Certified?factory.