Alter your tastes, tap into lightweight, mummy-style comfort.

The Sierra Designs Nitro brings back the classic mummy shape at an impressively low weight, yet comfortable price.

Key Features PFC-Free 800FP Dridown and 15d nylon fabrics / ultralight weight

Patented Self Sealing foot vent / fast and easy ventilation

Draft-dodger collar / helps prevent drafts

5" baffle spacing and side wall baffles / helps to keep down from shifting keeping you warmer

Anti-snag zipper tracks / makes getting in and out easy

Materials Insulation: 800FP PFC-Free Dridown

Shell Fabric: 15d nylon risptop

Liner Fabric: 15d nylon risptop

Tech Specs EN Limit Temp Rating: 2F / -17C

EN Comfort Temp Rating: 15F / -9C

Fill Weight: 26 oz / 736 g

Minimum Weight: 2 lb 7 oz / 1.11 kg

Fits Up To: 5' 8" / 173 cm

Length: 74in / 188 cm

Shoulder Circumference: 58" / 147 cm

Hip Circumference: 58" / 147 cm

Footbox Circumference: 39" / 99 cm

Mesh Stoarge Bag Size (LxW): 20 x 12" / 51 x 31 cm

Stuff Sack Size (L x W): 16 x 9" / 41 x 23 cm