This cup is a locker-room essential and is comfortable enough even for non-contact sports. The gel edges are really soft and offer some comfort advantage over my Shock Doctor cup. Plus the XO is narrower and slightly pointed at the bottom, which means you can wear it a bit lower down without chafing. Its deep shape means everything is contained without any tightness or compression and, when worn with the excellent XO jock, it stays rigidly in place - which is vital - even after a long training session, though it could have more vent holes. Wear the right size of jock, though, otherwise the cup may not stay in position and you risk injury. Err on the smaller size if in doubt. For protection, I still like the Shock Doc cup with its triple shielding and better ventilation but the XO cup is a great idea for its superior gel edging.
Note that the jock pouch is cut to hold a cup and hence doesn’t give the best support when worn alone. As a standby I wear a Shock Doctor bioflex jock, an excellent alternative that can be worn with or without a cup. Both cups are excellent quality, so it comes down to personal preference in the end.  Permalink

I bought this cup to fit under trunks. It fits a little differently that regular cups so you have to be cautious when you pull it on. I found out the hard way that's important when you get hit or kicked.  Permalink

Initially I was intrigued by the wrap-under design of this cup (the bottom point extends further down and under your privates than standard cups), because it seemed like it would prevent the cup from sliding around. However, I've found that extra bit of plastic between my legs rather uncomfortable. I think it's mainly because I'm a bit heavyset, my thighs are a bit plump and the plastic rubs.
Thinner and more athletically-shaped guys might not have this problem with the XO Pro-Cup. But I find it bothersome, and am planning to purchase a new, old-style standard cup.  Permalink

As a 13 year old, lying on the canvas in agony with my mom almost in tears, I resolved I would never get in the ring again without a proper fitting foul protector. The XO teen cup is the answer for the young boxer who has outgrown his youth cup.   Permalink

The strap is very high quality and the pouch is a smooth material that is strong and comfortable. The cup is contoured so it curves underneath the scrotum to the perineum. It protects very well and fits well.  Permalink