Robert Stock 90s Button Abstract Geometric Silk Shirt Mens Vintage Long Sleeve The Robert Stock 90s Button Abstract Geometric Shirt is a vintage men's long sleeve t-shirt from the 1990s. Made of silk and featuring a colorful geometric pattern, this shirt is machine washable and has a regular fit. With a crew neck and short sleeves, it is perfect for the spring and summer seasons, offering a unique and retro 90s style.