86% Nylon, 14% Elastane Imported STRETCH: Stretchdown weaves pockets of down insulation from a single stretch fabric, giving this jacket an incredible durable stretch, and you the freedom to move PACKABLE: This stretchdown jacket is the most compressible version and entirely packable into left hand stow pocket for easy use and travel LAYERING: So warm you may not need to, but if you want to layer this jacket the full zip construction makes taking it on and off a breeze QUALITY MATERIALS: Insulation is Allied Traceable 700-fill RDS-certified down and is and bluesign approved LIMITED LIFETIME WARRANTY: Limited Lifetime Warranty covers defects in materials and workmanship for the practical lifetime of Mountain Hardwear brand products manufactured by Mountain Hardwear