I ordered the arm sleeves to add to my collection after the very compelling description of using ice in the little pockets to help keep cool in addition to the sun protection. I effectively made our summer significantly cooler than it wouldhave been if i hadn't bought these, and consequently never had to resort to ice in the little pockets. but it does do a nice job of keeping the sun off your arms, and you can store gu's etc. in the pockets. I got a bit of chafing in underarm area, but only once. the sticky inside the upper area is super effective at keeping them up.
I am happy with them!