TETON Sports ALTOS Ultralight Mummy Sleeping Bag Perfect for Camping, Hiking, and Backpacking; Lightweight All-Season Mummy Bag; Compression Sack Included COMFORTABLE DOWN MUMMY BAG: Filled with MTN-DRY down that repels water, so you stay warm and cozy; Roomy bag provides more shoulder and leg room; Built-out footboy provides more room for your feet BACKPACKER'S DREAM BAG: Lofty, lightweight, and highly compressible; Enjoy the warmth of MTN-DRY down and synthetic bag with the unrivaled warmth of down that repels water NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON Sports provides a durable compression sack for stuffing your sleeping bag into; No need to roll it up and fight to get it in the sack; Simply start at the bottom and stuff the bag in; see our instructional videos SLEEP WARM: EN rated sleeping bag; Extreme -9F (-23C), Limit +23F (-5C), Comfort +32F (0C); As you know youll sleep warmer if you use a camp pad, wear a hat and socks, stay hydrated, and fluff your sleeping bag before you go to bed to restore its loft TETON SPORTS PROMISE: Reach out to our AMAZING customer service team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care of and back OUTDOORS with TETON Sports