I'd love to be wrestled over the jersey in the pool! If you could pull that whole thing off me, you could literally swim into it to put it on because it's so huge and baggy. But you'll have a hard time to do that because I'll be wrestling and ripping back the jersey from you
The tag says CLAX which I assume means it was specially made by the Canadian Lacrosse League. I bought it on eBay when the team became defunct. The seller explained that this is size 80+ (39" across the chest!)