S: Thigh circumference 29-32cm, joint circumference 17-20cm, foot circumference 13-16cm, leg length 25cm. M: Thigh circumference 36-39cm, joint circumference 22-25cm, foot circumference 16-19cm, leg length 30cm. L: Thigh circumference 43-46cm, joint circumference 27-30cm, foot circumference 19-22cm, leg length 35cm. 360 SUPPORT: the light compression ensures stability and enhances balance among muscle groups for comprehensive support, preventing minor injuries from becoming more severe. Please watch our VIDEO and follow the instructions to choose the right size. A size chart is available in the images. PAIN RELIEF: alleviates pain from cruciate ligament injuries, osteoarthritis, and kneecap issues by raising joint temperature, which aids in reducing inflammation. FAST RECOVERY: ideal joint temperature boosts blood circulation, improves oxygen delivery, and enhances performance for quicker recovery. VETERINARIAN PREMIUM QUALITY: this knee brace is crafted to offer exceptional support and comfort while maintaining your dog's mobility. The high-performance neoprene provides enhanced elasticity for better fitting on the dog's leg. Some dogs may experience a shifting hip, causing the upper belt to slide back and potentially fall off. NEED A STRONGER SUPPORT: The Knee Brace is constructed from 2 mm neoprene and is fully flexible. It provides light compression, enhances blood circulation, and accelerates the recovery process. About Shipping: All items will be dispatched within 3 business days after payment is received. Typically, you will receive them within 8-12 days. The exact delivery time depends on various factors. Any questions, please feel free to reach out to us. During the shopping process, if you have any inquiries, do not hesitate to consult us, and we will respond within 24 hours. We wish you a pleasant shopping experience. Thank you for your cooperation, and we aim to ensure your satisfaction.