Helium 600 4 to 10C Down Sleeping Bag Left Hand Zip Size:WMNS waterproof extension for the Helium 8020647105557 waterproof extension for the Helium UL Bivy Wear indicators on the tie in point so you know when to replace Backcountry Hiking Season Rating 4 Season Cold Sleeper Rating 4°C Warm Sleeper Rating 10°C Standard Weight 1000 g Insulation 850+ Loft Muscovy Down Down Treatment DWR Loft Water Resistant Treatment Shell & Lining 10D × 10D Nylon Fabric Weight 26 g m² Thread Count 520 Maximum User Height – Women's Small 170 cm Maximum User Height – Standard 185 cm Maximum User Height – Extra Large 200 cm Shoulder Circumference – Women's Small 160 cm Shoulder Circumference – Standard 160 cm Shoulder Circumference – Extra Large 170 cm Hip Circumference – Women's Small 132 cm Hip Circumference – Standard 132 cm Hip Circumference – Extra Large 142 Available in Women's Small