STABLE STRUCTURE. SHOCK-SUPPORTED SUPPORT. The Nike Air Max Bella TR 2 is a versatile sports shoe for heavy activities and training at training stations, and is made with a ventilated net and comfortable shock absorption thanks to a low-profile Max Air unit. A floating heel strap and a flat outsole deliver stability during heavy lifting so you can train with confidence. Designed for stationary exercises and heavy activities in the gym. The Nike Air unit sits close to the ground for shock absorption and stability. The heel strap offers fixation for squats with heavy weights. The ventilated, dimensional mesh upper has a textured look and feel. The inner shoe's construction makes it easy to put on and take off the shoe. The shoelaces are integrated with the strap so you can tighten it around the heel while tying the shoe.