Drycomp Summit Sack Pewter/Lemongrass – One Size. This ultralight and waterproof day pack has all the features needed for a fast and light summit push. An airpurge strip allows for maximum compression, as the air-permeable fabric allows the complete evacuation of internal pressure. Sewn and taped seams, and reinforced fabric on the bottom and back area provide maximum strength and waterproofness. Mesh side pockets accommodate water bottles, and g