I haven’t tried them, but Stilletto posted a review of the tummy liner, and Notblueatall posted a review of both the bra and tummy liners.
I’ve mentioned before that I use baby powder to combat belly and underbust chafing. It’s probably why I haven’t noticed a problem with sweat (baby powder is absorbent) but I thought it might be of use to others. :)
BTW – AmpleStuff is owned by William Fabrey, who founded NAAFA and co-founded the Council on Size & Weight Discrimination. They carry things like airplane seat belt extenders, extra-wide hangers, extra-long fanny packs, reach tools, extra-long measuring tapes for sewing, and supersize hospital gowns. My husband’s socks and our scale were purchased from AmpleStuff.