The Rab Ascent Down Sleeping Bag (-18°C) is a warm, wide mummy bag built for cold-weather trekking and backpacking.
Filled with 650FP European duck down and wrapped in windproof Pertex® Quantum, it balances warmth, comfort and packability.
Hand-filled in the UK, it delivers reliable mountain performance when uninterrupted rest matters most.

Features

• 650FP European duck down with fluorocarbon-free hydrophobic finish

• L.O.F.T™ baffle construction for maximum warmth-to-weight ratio

• Wide mummy fit allows extra layers in colder conditions

• Sidewall baffles reduce cold spots for side sleepers

• Windproof 20D Pertex® Quantum ripstop outer

• Recycled 20D nylon lining for next-to-skin comfort

• Two-way YKK® ¾ length main zip with synthetic-filled baffle

• Secondary short zip with snap closure for arm use while retaining heat

• Synthetic insulated neck collar seals in warmth

• Anatomically shaped foot box for relaxed sleeping position

• Internal zipped stash pocket for valuables

• Anti-snag zip guard and insert

• Internal cordlocks positioned for side sleeping comfort

• Supplied with drawcord stuff sack and zipped storage sack

• Hand-filled in Derbyshire, UK