Ye was pictured wearing sock-like shoes as early as 2019, which may be a prototype for the Yzy sock shoes described in his trademark application.
Kanye Files Trademark For Yeezy Sock Shoes: Report
Kanye West's Trademark YZY SOCK SHOES: What Can We Expect?
Kanye West Files New Yeezus Trademarks
Kanye West's bizarre sock shoes confuse fans as he steps out with
yeezy insider|TikTok Search
Kanye West's Trademark YZY SOCK SHOES: What Can We Expect?
Kanye West Files to Trademark Yeezy Sock Shoes
Ye New YEEZY Sock Shoes Trademark Filing
So, Kanye Just Filed a New Trademark for YEEZY Sock Shoes