At just 19.6 ounces and with an R-Value of 4.4, the Insulated Static V Lite delivers exceptional comfort and insulation for minimal weight. The V shaped chambers minimize air movement and are filled with light, warm Klymalite™ synthetic insulation for thermal performance in winter conditions. The ergonomic design and dynamic side rails cushion and cradle the body for a better night’s sleep. Advanced ultralight materials and smart construction shed grams without impacting performance, making this a versatile choice that handles for winter ski tours, summer backpacking and all season adventure.