1. foot support: Use the splint at night to keep the foot extended, providing orthopedic support for drop foot, Achilles tendinitis, including various symptoms such as flat feet, drop foot, and heel spurs. 2. Innovative open heel design: The plantar fasciitis night splint features an open design and can be used on both left and right feet. The soft and elastic straps fit most adult foot shapes, ensuring the splint stays firmly in place throughout the night, comfortable without distortion or slippage. 3. Upgraded adjustable night brace: Through the flexible aluminum bar on the dorsal surface of the foot, maintain the bending angle of the foot as needed. It can be adjusted to keep the painful foot at a comfortable angle of 70 90 degrees! 4. Adjustable straps fit all foot shapes: Both the foot and ankle straps are adjustable, with lengths sufficient to wrap around most foot shapes and ankles. This plantar fasciitis night splint is universal for both left and right feet.