Features: 【Foot Stability Support】Constructed with high-elasticity TPU it delivers robust support to effectively correct foot pronation and supination issues. 【Comfortable Half-Size Design】Features a half-size insole optimized for shoe space, maintaining overall comfort without compromising fit for seamless daily wearing. 【Breathable Anti-Slip Surface】Special treating enhances breathability while preventing foot slippage, keeping feet dry and comfortable. 【Invisible Correction】Slim profile ensures discreet wear with not visible to appearance, quietly improving issues. 【Durable Nature Friendly 】durability TPU is not only wear-resistant but also friendly to environment, minimizing environmental impacts. Specifications: Component: TPU Size: XS size 14x7x2.9cm; S size 15.1x7.3x2.9cm; M size 16.3x8x2.9cm; L size 17.3x8.2x2.9cm Attribute: black for Daily walking | Sports and fitness | Standing and working for a long time Practicality: Effectively relieve foot fatigue | Improve | Enhancing comfort Package Includes: 1pair Foot Orthotic Insoles note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution