3-Season 30°F/-1°C Spoil yourself with the Arrow Rock 30, everything you dream about in a three-season sleeping bag. Flex technology throughout gives an unparalleled night's rest, allowing you to spoon, sprawl, or starfish until the sun comes up. Warm yourself with 600-series down, legendary for its thermal efficiency, light weight, and durable compressibility.
For superior comfort and heat retention, Sierra Designs incorporates Flex technology into several insulated jackets and sleeping bags. With elastic built into the baffles of both down and synthetic jackets and bags, Flex technology hugs the body, eliminates dead air space, and keeps warm air close to the body. And beyond just keeping you warmer, Flex jackets and sleeping bags move with you for better mobility and a more comfortable night’s sleep.