User Review: Five Ten Prima Slipper
Materials: Stretch uppers
Use: Bouldering, gym climbing
Break-in Period: almost none
Price Paid: $30
This is a great shoe. The Prima, despite its scant appearance, is a great performer, comfortable out of the box, and I have no problems whatsoever keeping it on my foot. Since it was cheap, initially I just bought it to be a "gym shoe" so I wouldn't tear up my Sportiva Miuras (also a great shoe) indoors at the gym, but the Primas have become my go-to shoe for bouldering, because they are so easy to get on and off.
I bought a 1/2 size smaller than my street shoes, and they fit great. I'm going to stockpile these so I can keep wearing them after FiveTen no longer has them in stock.