[caption id="attachment_916" align="alignnone" width="497"]
A Mountain Equipment Co-op dry bag. click image to enlarge.[/caption]
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A better look at how a dry bag closes.[/caption]
Also known as kayak bags, wet/dry bags, or simply waterproof bags. Lots of different companies making the same basic design: A tube of polyurethane-coated fabric, or PVC, capped at one end with the same material, except perhaps a bit more rugged weight. The seams are bonded with something like radio-frequency welding, rather than stitching. The open mouth of the bag is made water-tight with a tried-and-true roll/fold, and cinch system:
The two sides of the open mouth of the bag, have stiffening strip to help it close flat -- just like closing your mouth -- the stiffening strips are like lips. On either side of the mouth are the two parts of a side release buckle. Simply fold the stiffening strip over itself three times, and snap together the two ends of the buckle, and the bag is water-tight. Throw it in a river, or a lake, or Vancouver in October to March, and fahgettaboudit! I prefer the coated fabric; I've found the PVC will dry and crack.
Capacity is measured in litres (in Canada, at least). They can hold whatever you want. In my experience, a thin, summer-weight sleeping bag fits nicely in a 10L bag, and a winter-weight sleeping bag (Vancouver winter, good to -3-degrees-Celsius) fits in a 20L bag. Best to try it first.
I buy mine at Mountain Equipment Co-op -- only in Canada you say? $5 buys you a lifetime membership. But all outdoors outfitters will sell dry bags.
A Mountain Equipment Co-op dry bag. click image to enlarge.[/caption][caption id="attachment_917" align="alignleft" width="285"]
A better look at how a dry bag closes.[/caption]Also known as kayak bags, wet/dry bags, or simply waterproof bags. Lots of different companies making the same basic design: A tube of polyurethane-coated fabric, or PVC, capped at one end with the same material, except perhaps a bit more rugged weight. The seams are bonded with something like radio-frequency welding, rather than stitching. The open mouth of the bag is made water-tight with a tried-and-true roll/fold, and cinch system:
The two sides of the open mouth of the bag, have stiffening strip to help it close flat -- just like closing your mouth -- the stiffening strips are like lips. On either side of the mouth are the two parts of a side release buckle. Simply fold the stiffening strip over itself three times, and snap together the two ends of the buckle, and the bag is water-tight. Throw it in a river, or a lake, or Vancouver in October to March, and fahgettaboudit! I prefer the coated fabric; I've found the PVC will dry and crack.
Capacity is measured in litres (in Canada, at least). They can hold whatever you want. In my experience, a thin, summer-weight sleeping bag fits nicely in a 10L bag, and a winter-weight sleeping bag (Vancouver winter, good to -3-degrees-Celsius) fits in a 20L bag. Best to try it first.
I buy mine at Mountain Equipment Co-op -- only in Canada you say? $5 buys you a lifetime membership. But all outdoors outfitters will sell dry bags.
Snap closure detail image from here.
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