html-body [data-pb-style=N38PBA4]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll} Size: Medium 30L 10" x 19" Colour: Dark Olive 100% Waterproof 500g/m Laminated PVC/Nylon/PVC Material Reinforecd top band Adjustable carry strap Made using a 100% waterproof heavy-duty 500g/m laminated PVC/Nylon/PVC material these Dry-Sacks are made to keep the wet out. All three sizes feature a stiffend reinforced top band which can be rolled down and clipped together to provide a 100% waterproof airtight bag. D-rings each sideonto which are clipped adjustable carry-straps - a single shoulder strap on the small size and twin straps on the medium and large so they can be worn as a rucksack.