Sports Research, Sweet Sweat Arm Trimmers, Unisex-Regular, Yellow, 1 Pair

I honestly did not know what to expect with these. They fit really comfortable. You just put them under your arm and wrap it around, velcroing on the other side. You can feel it working on your arms when you have them on. Just from picking up something semi-heavy you can feel they add pressure to your arms to make you sweat more. I can see these working really well for toning purposes. I've only had them a week, but I really like them so far. They don't make me hot, don't rub or anything like that. I use them when I work out and sometimes when I'm just doing housework or lifting heavy things.

I was a little worried about using these simply because I've never had great success with any type of arm band product in the past. They move around too much, or fall, or have to be too tight to be comfortable, etc. These stay put and definitely help work up a sweat. That said, I did get some slight rubby spots not on my arms, but on my underarm area. They're not rough or anything like that. I think it's just that I've got a little too much chub in that area. Ha! Still, I like them a whole lot and wearing them with a tech tee as opposed to just my sports bra should solve that issue. All in all, they're as great as the waist trimmers!