Cold nights need a sleeping bag that holds warmth properly, not just one that looks warm on paper. The Rab Ascent 700 uses 650FP RDS Certified European Duck Down with a Nikwax fluorocarbon-free hydrophobic finish, giving it the loft and insulation needed for regular camping, trekking, backpacking, and general mountain use in colder conditions.

The shape is a big part of the comfort. Its wide mummy cut gives you more room to move than a tight alpine bag, while the trapezoidal boxwall construction helps the down loft evenly through the chambers. A shaped neck collar, hood drawcord, and down-filled zip baffle help keep warm air in when the temperature drops.

The left hand YKK 3/4 zip is supported by anti-snag details for smoother use, and the angled foot box gives your feet a more natural position overnight. Down bags reward proper care, so the included cotton storage sack is useful at home, while the drawcord stuffsack keeps it manageable for the pack.

A warm, well-specced choice when you want your first down bag to be capable enough for colder trips, not just fair-weather camping.

Key Features

• 650FP Duck Down: Provides warm, compressible insulation for cold-weather camping and mountain use.
• -9C Sleep Limit: Gives the bag a cold-condition rating suited to autumn, winter, and cooler alpine nights.
• Wide Mummy Shape: Allows more room than a narrow mummy bag while still helping retain warmth.
• Trapezoidal Boxwall Construction: Maximises loft and helps reduce cold spots through the bag.
• Shaped Neck Collar: Seals warmth around the upper body when temperatures drop overnight.
• Left Hand YKK Zip: Gives clear variant identification and practical access from the left side.
• Angled Foot Box: Supports a more relaxed sleeping position without wasting warmth around the feet.
• Storage and Stuff Sacks Included: Includes a cotton storage sack with water-resistant base and a drawcord stuffsack for packing.