The blacks are officially fullface only, red and blue you're fine with an open face. Though personally I was happy to be wearing my fullface on all the routes!
(well- when we were there some of the material said full face for both blacks, others full face for y du only, not sure exactly how that's shaken out but it'll make no odds to you)
If you decide to buy one, 661 are generally a good budget option, well made but a bit hefty. Er, risk of spam but I have a 661 Strike in medium going spare since I upgraded to my Urge, you could have that for not very much money.