The Over Board Waterproof Duffel Bag 60 Litres has a roll-top & gives you full protection against water, dirt & s&. Because it has welded seams & the Fold Seal System with a Velcro strip work, these all work together to make this sailing bag 100% waterproof & suitable for quick submersion.- 100% Waterproof holdall (Class 3)- Internal PVC tarpaulin bonded to an outer nylon cotton shell- High frequency welded seams- Top carry handles with Velcro joiner- Protects contents from dust, s&, dirt & water- 4 x D-rings for multiple attachment options- 9in x 9in outer mesh pocket with Velcro closure- 2 x internal 8in x 13in mesh pockets with zipper closure (1 each side)- Internal wet/dry pocket- Heavy duty & durable materials for rough usageď»