Re: wetness under the armpits! driving me nuts!
My teen daughter sweats alot under her arms as well. And it is frustrating. I have purchased those removeable underarm dress shields for her to put in her tops. Sometimes I also use double sided sticky tape to keep them in place. However, for the cute little summery tops it's not practical as the shields will show. She's reluctant to buy certain colors because she feels they will show sweat more.
I will look for that certain dri that someone suggested.
Please keep writing in with any suggestions, products that worked for you.