Trek

Looking for a roomier sleeping bag that adapts to changing temperatures? The Trek Sleeping Bag from Sea To Summit offers the perfect blend of comfort and versatility for cool-to-warm conditions. Thanks to the Free-Flow Zip system, you can easily adjust ventilation—from a snug sleeping bag to a fully open quilt. You can even snap it around your shoulders, unzip the footbox, and wear it around camp. Filled with RDS-certified, 650+ fill power duck down and treated with non-PFAS Ultra-Dry Down, it provides reliable warmth even in damp environments.

Trek Down Sleeping Bag Features

• 650+ fill power duck down, RDS-certified and treated with non-PFAS Ultra-Dry Down for reliable warmth even in damp environments
• Recycled 20D polyester shell with a non-PFAS DWR finish helps block wind and moisture; soft polyester lining ensures next-to-skin comfort
• Free-Flow Zip System allows for versatile ventilation and multiple configurations—from full coverage to quilt-style
• Semi-rectangular, women’s-specific shape provides extra room and tailored comfort for camping and travel
• Backed by the Sea to Summit Lifetime Guarantee for long-term durability and peace of mind.

TECH SPECS

• Lower temperature rating: -1C, -9C (NB: lower limit not comfort)
• -1C Weight: 1119g (R),  1253g (L)
• -9C Weight:  1436g (R), 1611g(L)
• -1C Compressed volume: 8.2L (R), 8.8L (L)
• -9C Compressed volume: 10.6L (R), 12.2L (L)