Offering lightweight durability on the heavier endeavours, the Sea to Summit Alpine -29C Down Sleeping Bag is for the fast and light braving the frosty climates.

Featuring an Expedition mummy fit for adequate room and thermal efficiency, the Alpine -29C boasts a 100% Nylon construction in the shell and lining, with both a technical hood and footbox for superior warmth retention. An RDS-certified 850+ FILL Power goose down provides both comfort when unpacked and a compact pack down, treated with ULTRA-DRY down water-repellent to protect from moisture on the damper days off the grid.

Designed for efficiency on every overnighter, the Alpine’s Free-Flow Zip System includes a full-length primary zipper and 1/2-length secondary zipper, lined with draft tubes for optimal heat retention; a unique arrangement that offers sufficient temperature regulation, versatility, and multiple bag configurations. Plus, a -29° C lower limit has it suitable for those sub-zero blasts on cold weather camping trips.

The Alpine -29C Down Sleeping Bag by Sea to Summit is for the fast-paced pros tackling low-temperature adventures!

• 100% 20D Nylon shell with PFC-free DWR for water-resistance
• 100% Nylon lining is highly breathable
• RDS-certified 850+ FILL Power goose down for comfort and compact packing
• PFC-free ULTRA-DRY down water-repellent treatment for thermal performance
• Technical hood and footbox
• Draft tubes run along top of all zippers for maximum warmth retention
• Expedition mummy fit for maximum room and thermal efficiency
• Full-length primary zipper
• ½-length secondary zipper for temperature regulation
• Free-Flow Zip System for temperature regulation and numerous sleeping bag configurations
• 26L compression bag included