evo.com | Mammut Down > The Mammut Alvier IN Flex Jacket is the answer when the weather turns nasty cold, but you don't want a super bulky or confining mid layer hampering your style. Insulated with 750 fill down and made of a stretchy Toray Polyamide and Elastane fabric, the Alvier IN Flex Jacket moves with you while keeping your core toasty, a hard to beat combination. 90/10 750 Fill RDS (Responsible Down Standard) White Goose Down 2 Side Pockets with Concealed Zippers Hybrid Construction Thinner material on sleeves and sides for reduced bulk, better freedom of movement, and moisture management. 86% Polyamide / 14% Elastane Toray Technical Weave Athletic Fit | Women's Mammut Alvier Insulated Flex Jacket 2019