Sea to Summit ALTITUDE ATI

You’ll always be prepared for a good night’s sleep on your backpacking adventures with the cosy and adaptable Altitude At1 from Sea to Summit.

This sleeping bag features a rectangular design to give you extra space so it’s great for restless side sleepers, it’s also wider at the hips and narrower at the shoulders to cater to women. To keep the weight down, the shell and lining are made from light breathable nylon that packs down small while the vertical chest baffles prevent the down from migrating. Filled with extra RDS 750+ ultra-dry down for superior insulation, with oversized draft tubes to trap heat, and THERMOLITE synthetic panels under the feet – the Altitude is designed to keep you warm.

• -4°C comfort rating, -10°C lower limit
• Tapered rectangular women’s specific design with wider hips and narrower shoulders
• Free-Flow triple-zip design for adaptability
• Half zip on the left and full-length two-way side zip and separate foot zip
• Super light nylon shell and lining
• High-quality RDS certified 750+ Loft ULTRA-DRY Duck Down for insulation
• Oversized draft tubes prevent body heat escaping
• Panelled  and 3D hood
• Extra down overall and THERMOLITE panels under the foot area
• Vertical baffles over the chest to prevent cold spots
• Large internal security pocket
• Storage cell and a lightweight compression bag for storage
• LH and RH bags zip together 

• Fill Weight: 18.3 oz
• Foot Circumference: 46 in.
• Hip Circumference: 58 in.
• Shoulder Circumference: 58 in.
• Weight: 38 oz