Underarm pads or 'sweat shields'
I have tried about 4 different types with varying success. Some are the wrong shape, some aren't absorbent enough, and some don't seem to stay in place no matter what I do. With one brand, the soft, cotton absorbent layer peels away from the waterproof backing (which has the adhesive on the other side) after only an hour or two. They tend to be expensive too. Having said all that, I'll probably keep persevering in my efforts to find the 'perfect' underarm pad. I wear suits to work and dry cleaning tends to ruin them so wearing sweat shields is a good, 'natural' alternative.