Tech Specs:

Material:

PVC-free double-coated nylon 

Closure:

Roll-top 

Volume:

305cu in (5L); 610cu in (10L); 1220cu in (20L); 1830cu in (30L); 2440cu in (40L); 3356cu in (55L) 

Dimensions:

[5] 7 x 8in (18 x 20cm); [10] 8 x 14in (20 x 36); [20] 9 x 16in (23 x 41cm); [30] 11 x 19in (28 x 40cm); [40] 13 x 20in (33 x 51cm); [55] 13 x 25in (33 x 61cm) 

Backpack Straps:

No 

Weight:

[5] 5oz (149g); [10] 7oz (205g); [20] 11oz (320g); [30] 16oz (455g); [40] 18oz (515g); [55] 22oz (597g) 

Recommended Use:

Rafting, kayaking 

Manufacturer Warranty:

Lifetime