From his draft profile on NFL.com:
Slot target who will catch and gain what is available but is unlikely to do much beyond that. Bolden has adequate quickness for the Alabama scheme but isn’t an explosive separator. He has the hands and toughness to work in the middle of the field but will see diminishing catch windows the further he gets from the line of scrimmage. He doesn’t have the speed or catch radius to help inaccurate passers and he doesn’t appear to have enough talent to shine outside of the Alabama juggernaut.