The Summitâ„¢ 456 was designed to provide motion restriction, creating a dynamic environment for healing throughout the thoracic and lumbar spine. Patient compliance improves as the Summit 456 is comfortable to wear and easy to don and doff. The Summit 456 was designed specifically to target patients with indications that have historically been a challenge to treat (compression fractures, burst fractures, kyphosis, fusions). Comes in a universal size, adjusts to fit a waist circumference of 26″-60″.