Sure Seals www.alpglobal.com
They are breathable and waterproof. They hold up in hot tubs, too.
I run Half Marathons plus weight train and do hot yoga...so I SWEAT every day...and they haven't failed me yet. I use Coloplast Extended Wear with an Eakin Seal and I do not use any belts/support items.
Granted, I do not always get more than 5 days of wear time per appliance, but that's ok with me. I do find during the summer months when I am swimming and doing all those fun boating/paddling sports it can vary, too.
You can request samples from ALP Global. There is a learning curve so give it a couple tries. I actually just ordered my next batch online, from one of the cheaper places that doesn't take insurance, and 50 seals cost me a little under $60 with shipping. I think places like Edgepark charge $15 to $20 per pack of 10.