Hyperion 32f/0cThe Hyperion 32F 0C sleeping bag is among the lightest in its class while still providing high performance during backcountry pursuits. The bag uses thermally efficient box baffled construction in key areas to ensure warmth and comfort in an ultralight package. Designed with high quality materials and Therm a Rest performance features, the Hyperion keeps your pack featherweight without sacrificing an ounce of performance. Storage sack and compression