Size 8 suitable for height 115-125cm weight about 40-50 pounds 10 size suitable for height 125-135cm weight 50-60 pounds about 12 yards to send chest pads, suitable for height 135-145cm weight 65-75 about 14 yards to send chest pads, suitable for height 145-155cm weight 80-95 or so 16 yards to send chest pads, suitable for height 150-160cm weight 90-100 S size chest pads, Suitable for height 125-135cm weight 50-60 kg about M size (chest pad, suitable for height 135-145cm weight 65-75 about L code (chest pad, suitable for height 145-155cm weight about 80-95