BT21 slippers released by Avail. Can be used both indoors and outdoors. The size is listed as L, but it's only available in one size. 【Shipping Method】 Will be carefully shipped via Yamato's Rakuraku Mercari service. Usually ships within 1-2 days of purchase, but please let me know if you're in a hurry. Instant purchase OK Anonymous shipping Tracking and compensation available 【Greeting】 I will strive for prompt and courteous service, so thank you for your understanding. Please understand that this is a personal inspection and home storage item. Thank you for your understanding (❁ᴗ͈ˬᴗ͈)