Sea to Summit Silk Blend Sleeping Bag Liner - Mummy Brand_Super Feet The laminated airblock film is

The laminated airblock film is of PU-Ether It is absolutely hydrolisis resistant making it leakproof even if humidity accumulates during inflation

This enables length adjustment even under load

shorter routing

Made from vulcanised material for a long life

With large coverage

Sea to Summit Silk Blend Sleeping Bag Liner - Mummy Brand_Super Feet The laminated airblock film isDesigned primarily for comfort, the Silk Blend Liner adds warmth to your sleeping bag via the 72% Thermolite Pro yarns with infra red technology, Thermolite EcoMade fibres and 28% silk. The combination creates a soft, luxurious sleep environment. Comfort Stretch Panels along the seams boost sleeping comfort. Shoulder openings and a drawcord footbox add temperature regulation (and match the Free Flow zippers of Sea to Summit sleeping bags).