The Glissade Insulator Vest pairs well under any Spyder shell or over Tech tops thanks to PrimaLoft®® Black Eco insulation— made from recycled materials and known for its high warmth-to-weight ratio, power-stretch ventilation zones and Downproof Nylon Triple Ripstop fabric—allowing for warmth, abrasion resistance, and breathability. New with tags. Very warm. Measurements: Pit to pit: 20" Length: 29"