Therm-a-Rest's all-new Fast &amp, Light sleeping bags are designed for high speed adventures and are lighter than ever. When light weight and a restful sleep are required, Hyperion sleeping bags offer the best performance for uncompromising adventurers. 900-cuin Nikwax Hydrophobic Down Down Down stays dry and retains its fluffiness up to sixty times longer than untreated down. They absorb 90% less moisture and dry three times faster than untreated down. No dangerous PFC.SynergyLink ConnectorsConnect the sleeping bag to a mat for optimal efficiency and comfort. ThermaCapture liningCaptures body heat and keeps you warm without excess volume or weight. - Details: - Main material: 10D tearproof nylon with DWR - Material lining: 10D tearproof nylon with ThermaCapture - Material filling: 900-cuin Nikwax Hydrophobic Down goose down (RDS certified) - One of the lightest sleeping bags in its class - Very small pack size - With mesh walls for maximum loft and best heat distribution - Maximum warmth with light weight due to functional distribution of fill material - Heat-retaining draft collar, draft tube, non-interlocking zip & roll-up hood - Compression sack and storage bag included - Type: Mummy Sleeping Bag - Compression (cuin): 900 cuin cuin Season - Season: Three Seasons Material - Outer Shell: Nylon - Outer Shell Description: 100 % Nylon - Lining Material: Nylon - Details Filling: Nikwax Hydrophobic Down - Lining Material Description: 100 % Nylon - Special Features: Contains non-textile parts of animal origin - Filling: goose down Measurements - Body height (max.): 183 cm - Pack size in cm (L x W): 14 x 15 sleeping bag - Category: Down sleeping bag - Shape: Mummy shape Temperature range - Comfort temperature (°C): 5 °C - Extreme temperature: -15 °C Weight - Sleeping bag: 454 g - Filling: 245 g.