I purchased these gloves new and tried them on once, but the feel was a little different from my previous gloves, so I decided to buy the same ones I used before. Therefore, I will sell these to someone who needs them. I have never hit a heavy bag with them (I only tried them on once). === TWINS SPECIAL gray boxing gloves, designed for durability and excellent fit. - Brand: TWINS SPECIAL - Color: Gray - Type: Boxing Gloves Thank you for looking.