These gloves are pretty cool. Size-wise, they seem to run a little big, especially in the ring and pinky fingers. I usually wear a medium (Fox mediums fit me perfectly), but the medium in this glove is pretty roomy on me. Other than size, they feel good, and the D3O protection is sweet. Its not really bulky at all, but I tested it by punching some walls, and it felt fantastic, where I'm pretty it would have hurt with just the standard direct-inject knuckle armor most gloves have.