I've not jumped other full faces, but have tried the standard cookie and phantoms on. The sizing roughly correlates to other brands. I couldn't fit into a L cookie, but fit just fine in an XL. The XL Kiss works well for me. The visor opening/closing is a little tough if you're jumping in cold weather wearing heavy gloves, but closing the chin cup to keep it on your head is easier, so it's a bit of a trade off. All in all, I've very happy with it, and would recommend it to anyone.