I wore it in two races last season. Comfortable on both bike and run. Small fits my 140lb frame very well. I highly endorse the product!

I have it. It was fine for biking and running. After using it for a long swim (2.5 miles), I had horrible chafing along the side of my chest and underarms and decided to hang it up.

Do you think the chafing could be avoided w/ body glide or something like that?