I'm using Opsite Post-op at the moment. 9.5cm x 8.5cm.
[thats the size of the adhesive part- the absorbent dressing pad is roughly 32mm x 75mm]
Nearest thing I have seen to waterproof so far.
Not sure if they are meant to take the extremes of beach use- but last for a couple of showers before water works its way into the dressing.
Damn things are not cheap, around $5.50 each at a chemist, cheaper by the box of 3- but not much

Maybe bulk buy through ebay, or distributor- or find cute nurse to scrounge some from work for you.

stephen

Agree with sn, the post op ones are awesome. I've had ones that are supposed to fall off after a few days of showering and 2 weeks later you are drenching them and picking them off and they still tang a bit coming off.
One of them was after being fullof blood for days and the sticky still stucky

One of those post opsite dressings is the go. one of them with blue luekoplast tape from chemist, a few wraps with that & it wont come off. water will still get though but not much. great for keeping cuts scrapes on feet together for a few hours sailing.

Yep, the post-op ones are the way to go.

We get reamed on the prices big time here. I bought box of 50 of the things for just over 30 bucks in Kenya. At your local unFriendlies that'll get you 6

If you are going to be having to do a lot of dressing changes also get some the solvent stuff for getting the bloody things off a bit easier.

use spray-on dressing. (but it hurts a couple of seconds when you spray on your wound)