The longer legs make them less prone to ride up in the crotch as the CK Body Trunk Briefs do.  The elastic in the leg cuff's still tend to pucker after worn a while and the waste band elastic still rolls up badly so that it is like wearing a rubber band around one's middle.  The best feature of these briefs is the comfortable pouch that does a great job of holding one's privates in place and is very comfortable.  If they could fix the waist band and leg cuffs I'd give these 5 stars for every day wear.  I would not consider this fabric good for exercise wear.