BERG CHAMPION Challenge Accepted: Meet the Champion Ready for next-level jumps? The BERG Champion trampoline series delivers unbeatable bounce and comfort, perfect for the seasoned jumper. Crafted for safety and long-lasting fun, our TwinSpring springs and AirFlow (Pro) jumping surface mean less air resistance and more room to jump, letting you soar higher than ever. Choose your style: Above Ground, In Ground, or Flat Ground. In Ground and Flat Ground trampolines require inground installation.