Sea To Summit Trek Tk I Blue

• Tapered rectangular shape for more space and comfort than a traditional mummy sleeping bag
• RDS 650 down + Loft UTRA-DRY™ for optimal insulation and compressibility
• Ultralight materials for reduced weight and bulk
• Vertical padding at chest level to prevent the down from moving and guarantee even protection
• #5 YKK two-way zipper and foot zipper for opening and quilting and for additional ventilation options
• Oversized zipper beads with anti-jamming materials
• Large internal security pocket
• 3D side padding for good distribution of down on the sides of the bag
• 3D hood adjustable when necessary
• Silky, lightweight, highly breathable 20D nylon lining fabric, durable 30D nylon outer shell
• Includes Ultra-Sil™ compression sack for compact storage
• Zipper pairing: this bag was designed to be paired with another bag
• Max user height: < 183 cm
• Shoulder circumference: 152 cm
• Hip circumference: 146 cm
• Foot circumferences: 102 cm
• Packaged dimensions: 18 x 18 x 40 cm
• Compressed volume: 4.6 L
• Weight of filling: 350 g
• Total weight: 760g

Temperature ranges:

- comfort temperature: 5°c
- comfort limit temperature: 0°C
- extreme temperature: -15°C

- Comfort temperature : up to this temperature, the user, in a relaxed position on his back, does not feel any cold.
- Comfort limit temperature : between the comfort temperature and the comfort limit temperature, the user must move into a curled up position to maintain a comfortable heat level. Below the comfort limit temperature, the user may feel cold.
- Extreme temperature : temperature below which the user will feel a great sensation of cold which can be harmful to health (hypothermia). It is not recommended for a user to reach extreme limits.