Outdoor Research Helium Dry Sack

The Helium Dry Sacks by Outdoor Research. Specifications: #1 Avg. weight: 1.6 oz./44 g Dimensions: 175/8” x 6”/45 cm x 15 cm Volume: 398 cu. in./6.5 L Specifications: #2 Avg. weight: 1.8 oz./51 g Dimensions: 201/8” x 7”/51 cm x 18 cm Volume: 646 cu. in./10.6 L Specifications: #3 Avg. weight: 2.2 oz./61 g Dimensions: 225/8” x 8”/57 cm x 20 cm Volume: 971 cu. in./15.9 L Specifications: #4 Avg. weight: 2.8 oz./78 g Dimensions: 25 1/4 in. x 10 in./64 cm x 25 cm Volume: 1710 cu. in./28.0 L Specifications: #5 Avg. weight: 3.2 oz./91 g Dimensions: 27 1/4 in. x 11 in./69 cm x 28 cm Volume: 2259 cu. in./37.0 L Specifications: #6 Avg. weight: 3.7 oz./105 g Dimensions: 29” x 13”/74 cm x 33 cm Volume: 3364 cu. in./55.1 L Features: Hydroseal coated Antron nylon is waterproof and durable Waterproof taped seams Draw cord and Hypalon cord lock keeper closure Reversed tunnel eases cinching Dust flap Webbing bottom handle External daisy chain