I purchased this, but the size didn't fit, so I haven't used it. The size is L. Please refer to the size chart in the fifth image. It has Velcro, making it easy to put on. The inside is mesh. Reflective tape is also attached, so it's safe at night. It seems like it can be washed. The leash is 120cm long. This is a set of a brown check harness and leash for small dogs from LaLUCA, made of breathable mesh material. - Color: Pink check - Material: Mesh - Size: For small dogs - Included: Leash Thank you for viewing.