These ultra-sil dry sacks are ideal for sorting your gear and keeping it dry. These ultra light sacks are 100% waterproof, using a hypalon watertight roll top closure system and made out of siliconised Cordura® nylon. 3-size pack of lightweight drysacks with double stitched seams and watertight hypalon roll top closure. Material Ultrasil™; siliconised cordura, 100% nylon. Size of 8 litre sack (L)46, (D)17cm. Size of 4 litre sack (L)38, (D)24cm. Size of 1 litre sack (L)25, (D)16cm. Weight of large 8 litre sack 30g. Weight of medium 4 litre sack 26g. Weight of small 1 litre sack 20g. Manufacturer's lifetime guarantee against defects only.