This year round bivvy sack is ideal as a light weight replacement for your sleeping bag when temperatures are above 50F/9C and an excellent emergency survival shelter for winter time activities.

• Reflects up to 80% of radiated body heat
• Thermo-Lite non-woven fabric is waterproof and windproof.
• Ultralight, warm weather sleep system to 50F.
• Ultralight stuff sack allows you to store the bivvy before or after use.

WEIGHT: 6.9 oz
SIZE: 36" x 84"