Sea to Summit Trek -9C Down Sleeping Bag Regular snorkel blue

A capable three-season mummy bag built for trekking, camping, and travel in cold conditions.

The Sea to Summit Trek -9°C Down Sleeping Bag (Regular) uses RDS-certified 650+ loft Ultra-Dry Duck Down in a recycled 20-denier polyester shell to deliver reliable cold-weather insulation with good compressibility. Side block baffle construction and vertical chest baffles maintain fill distribution and eliminate cold spots. The bag ships with an Ultra-Sil compression sack and a storage cell for long-term care.

Features

• RDS-certified 650+ loft Ultra-Dry Duck Down insulation — resists moisture absorption

• Vertical chest baffles and side block baffle construction maintain 60/40 fill ratio and prevent down migration

• Two-way #5 YKK side zip and separate foot zip — converts to a quilt and allows ventilation control

• Oversized zip draft tube with anti-snag materials

• Zip coupling system — pairs with a compatible bag

• Large internal protective pocket

• Includes Ultra-Sil compression sack and storage cell

Technical Specifications

• Temperature comfort rating: -9°C

• Shape: Mummy

• Insulation: Ultra-Dry Duck Down, 650+ loft

• Shell: Recycled 20-denier Polyester

• Lining: Recycled 20-denier Polyester

• Body length: 183 cm

• Shoulder circumference: 158 cm

• Hip circumference: 149 cm

• Foot circumference: 131 cm

• Weight: 1.436 kg