High Quality Material: Cold Sensing Mesh + Cotton Filled Pads Front And Back. Full front leg protection to prevent knee joint injury and relieve arthritis pain. Stable: The buckle is fixed, which is convenient to wear and prevents the dog from falling during the port. Front chest strap, increase the front chest elastic strap to fix, wear a sweater, run or sit and lie down without loosening. Adjustable: adjust the buckle, adjust the elasticity and the length. The elastic strap on the back can be adjusted, soft and highly elastic, conforms to the body, and can be adjusted and adapted to the tightness according to the size of the body. Comfortable to wear: soft and breathable micro-elastic cotton fabric. Comfortable against the skin, warm in fall and winter and not stuffy in spring and summer.