Sea to Summit Heavy Duty Hydraulic Dry Packs give you the waterproofness of dry bags with the carrying flexibility of a backpack.

Manufactured from very tough 600D TPU laminated UV resistant fabric that withstands cold temperatures, these packs seams are welded rather than stitched for extra strength and waterproofness. 

The Hydraulic™ harness system used in these dry packs has an open construction of EVA foam and mesh  allowing plenty of air flow around the back for rapid drying. The padded shoulder straps and waist belt are fully adjustable using the aviation grade aluminium buckles, with the whole harness being easy to detach and reattach due to the cleverly designed aluminium S buckles and back stability bar.  

To help prevent rolling when in use, these dry bags have been designed to be oval shaped. This space saving low profile shape also helps with stability when stacking them. There are also four heavy grade external Hypalon lashing loops for extra security if needed.

Keeping your kit dry when packed is easy with the non-wicking TPU roll top closure. Just fold the top of the dry bag over three or four times and click the buckle shut. If space is at a premium then compress as much air out of the dry bag before you fold it shut, but please be aware that this will obviously affects it buoyancy. 

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