Based on this product's specifications, here are some alternatives and similar models
Supportive Rigid Gaiter TOROS-GROUP model 213 size 1 beige
Summary description:
Rigid supportive gaiter by TOROS-GROUP, model 213 (MPN 213b-1), size 1 in beige. Designed to provide firm stabilization and support for the lower leg/ankle area. Suitable for use after minor injuries, for joint support during daily activities or light rehabilitation. Constructed as a rigid support intended to limit undesired movement and promote comfort during wear.