Are any Costco hearing aids water resistant or waterproof?

How water resistant do you need? For sweat and light rain I have had good luck with the Resound Future. I got in the shower one time with them on and they got soaked. I pulled them off with wet hands and then after the shower I dried the outside, replaced the battery and they fired right up.

I know Costco has a pretty long list of models they can order so just ask them.