They seem very picky about the condition of the case on what you send in, so I'm not sure they have a stock of new cases.
See: https://cdn.shopify.com/s/files/1/0520/9856/4273/products/ai...
My puppy gnawed on my pair, so I was excited to get them rehabilitated.
My puppy gnawed on my pair, so I was excited to get them rehabilitated.