Dolphin tech offers individual plate and harness backpack combos.
Depending on your need, there are 4 models to choose: JTA-1. JTS-1, JTA-2, JTS-2

• Back plate is press-formed with bent, anatomical lower corners
• Adjustable nylon webbing harness straps with hook and loop hose tie downs
• Harness includes 4 D-ring attachment points: 2 at the waist, 2 at the shoulders
• Adjustable crotch strap with D-rings at front and rear