Fully waterproof bags 5mm heavy duty welded PVC material Hard wearing, long lasting The top of the bag is rolled over and clipped to seal Keep anything you need 100% dry Perfect for storing clothing, life jackets and sleeping bags Available in 4 sizes 15l - 23.5cm dia x 50cm 30l 31.5cm dia x 55cm 60l 40cm dia x 64cm (will fit most 3 season sleeping bags) 90l 40cm dia x 87cm (will fit most 5 season sleeping bags)