The North Face
Summit AMK Superlight Sleep System

The Advanced Mountain Kit is made with unparalleled precision for the worlds best mountain athletes. Our Summit AMK Superlight Sleep System is the next step in the evolution of alpine bags. It offers a wide fit so you can wear multiple layers while you sleep, meaning the bag itself requires less insulation for a lighter overall kit.

• Wide cut allows user’s apparel insulation to loft, which reduces the amount of insulation needed in the bag
• Combination of 1000 fill ProDown™ and a wide cut creates a multi-temperature system: 30°F/-1°C as a standalone bag; 0°F/-18°C when used as part of the AMK apparel-layering system
• Shell fabric made with Spectra® ripstop for ultra-lightweight durability
• Water-resistant exterior helps keep insulation dry
• Center half zip keeps the bag light and compressible while maintaining access to the tie-in point
• Thin, down-insulated hood and footbox provide warmth
• Cinchable hood and collar help seal out the cold
• Dyneema® compression stuffsack included

Sizes: REG, LONG

Temp Rating: 30°F/-1°C (0°F/-18°C when sleeper is wearing AMK apparel)

Total Weight: Reg - 2 lbs 5 oz (1045 g) / long - 2 lbs 8 oz (1135 g)

Stuffed Size: reg - 8.27'' x 15.75'' (21 cm x 40 cm) / long - 12.2'' x 18.9'' (31 cm x 48 cm)

Internal Length: reg - 78'' (198 cm) / long - 84'' (213 cm)

Max User Height: reg - 6' (183 cm) / long - 6'6'' (198 cm)

Main Body: breathable-waterproof Spectra® ripstop with metalized coating and non-PFC durable water-repellent (non-PFC DWR) finish

Lining: 7D recycled nylon with metalized coating and non-PFC DWR finish

Insulation: 1000 fill ProDown™; Responsible Down Standard (RDS) certified by Control Union, CU 843098

Stuff Sack: Dyneema® fabric