The Sierra Designs Nitro 30 Degree Sleeping Bag. Ultralight 30° F / -1° C Going Ultralight doesn't have to mean suffering. We'd rather find a way to shave the weight and innovate on performance, like using Flex technology for our Nitro 30. We build in Flex between the shoulders and knees, so you get the comfort and thermal benefits, while saving precious ounces. Foot Box Venting lets you customize the climate in the lower half of your Nitro, without adding the weight of a full-length zipper. Ultralight speed with full-featured comfort.

DECENT FEATURES of the Sierra Designs Men's Nitro 30 Degree Sleeping Bag

• Ergonomically shaped footbox
• Snag-free zipper tracks
• Draw cord at collar
• Ultralight footbox vent (12")
• Offset ultralight jacket zipper (30")
• Ultralight Jacket Hood
• Partial Flex on the exterior torso
• Zipper draft tube
• Includes stuff and storage sacks

The SPECS

• Temperature Rating: 30° F / -1° C
• Zipper Side: Left
• Stuff Size: 7" x 17"
• Material: Fill: 800 Fill-Power Goose Down
• Shell: 20D Nylon Ripstop
• Liner: 20D Nylon Ripstop

• Trail Weight: 1lb 10oz
• Shoulder Girth: 53 - 60"
• Hip Girth: 50 - 57"
• Footbox Girth: 38"
• Fits Up To: 6'
• Fill Weight: 12 oz

• Trail Weight: 1lb 13oz
• Shoulder Girth: 55 - 62"
• Hip Girth: 52 - 59"
• Footbox Girth: 40"
• Fits Up To: 6'6"
• Fill Weight: 14 oz