
I have always worn Five Ten..... But after today, I can't see myself wearing anything other than Acopa. The rubber is amazing, I've been amazed at how well I can smear, edge, and smedge in these shoes.
Sizing wise......I wear a 10 street shoe and I went down a Full Size (9), Its a bit too tight..... For a Bouldering Fit Go 1 Size down from your street shoe, Sport Climbing Go 1/2 Size down.....If your a Trad/Big Wall kinda guy get your street shoe size.