A wetsuit is supposed to be tight, skin tight. But not so tight that your range of motion is inhibited or restricts your breathing. The sleeves (if full-length) should fall at the wrist bone and the legs just above the ankle, and there should be no gaps, pockets, or rolls of neoprene. Wetsuits are meant to be form fitting. You don’t want loose folds of neoprene, or large pockets of air or water in your wetsuit.