Designed as a lightweight efficient sleeping system that can partner with any sleeping pad. Using only the top half of the sleeping bag, the Cloak offers a superior weight to warth ratio with the use of 850 fill Goose Down that has been treated with DownTec. It Feels comfy and unrestrictive, like a bed rather than a sleeping bag Backpacker Gear Guide Spring 2013.April 2013 Gear Guide, Backpacker Magazine:On moderate summer nights, a blanket is all you want and that's precisely what the zipperless Cloak offers, but with smart, camping specific features. the rectangular, 850 fill down quilt simply drapes around the sleeper a weightier draft tube along the perimeter creates a tucked in feel, but this is still an ultralight model for serious ounce cutters. A sleeve at the bottom mates with a sleeping pad to keep feet covered and prevent the Cloak from drifting away. It feels comfy and unrestrictive, like a bed rather than a sleeping bag. says one tester, who pulled the cover to her chin on chilly nights, or tossed it aside to cool down just like at home. And it's a smart choice for condensation prone ultralight shelters, thanks to a DWR treatment on the 15 denier nylon shell and water repellent down from DownTek see Fab Features, opposite that maintains loft through extended humidity. Bonus: The blanket style is more versatile than a sack style mummy bag. Testers wrapped themselves in its warmth when sitting in camp and after a running race, when the Cloak minimized post exertion chills. The premium down and minimalist design make it tiny when packed the size of a liter bottle. But it's not for big guys: Our broad chested tester found it too narrow to seal out drafts It stopped short of covering his back and chest when he slept on his side.