Hang upside down and perform inverted crunches, sit-ups, and twists to work your abs and obliques without straining your lower back. 

Gravity Boots allow you to incorporate challenging inverted sit-ups, crunches and bends to your regular workout while giving your ankles unparalleled support.  
A fantastic item to give you the upper hand in abdominal workouts whether you train at home or at the Gym, with theses gravity boots you will be able to give your ABS the definition that you have been longing for without putting too much pressure onto your buttocks and lower back, as well as allowing your body to fully stretch while training your ABS. 

They feature a tough cast metal shell for a secure fit a double lock system for safety and can attach to virtually any chin bars. 

• They feature a tough cast metal shell for a secure fit a double lock system for safety and can attach to virtually any chin bars.
• Pair of inversion boots for reducing back pain, spasms, and muscle fatigue
• Fights compression fatigue from jogging, aerobics, cycling, and other exercises
• Helps space out compressed discs and stretches your back, neck, and shoulder muscles
• Single-action locking mechanisms attach to virtually any chin-up bar.