Probably the most stable of chin straps, the unique, multi strap design holds it securely in place, and gives lots of chin and lip support. • Adjustable top strap • Adjustable back strap • Larger chin cup for more support • Bottom lip support as well as chin • Very stable multi-strap design • All elastic material for maximum comfort Three sizes available - Measure around your head, from under your chin to the crown of your head going just in front of your ears (above your forehead), and back to the starting point under your chin.