Sosoo Jeans 1971 Colorful Patchwork Jeans 30x30 Straight Leg Button. SOSOO Jeans Vintage 1971 Don’t Be Afraid Fashion Patchwork Jeans Size 30. Patches are cotton, poly, corduroy, denim, canvas twill, and more. Fraying around patches are intentional in the design. Button fly. Denim itself is not rigid 100% cotton. It feels like a softer cotton/poly blend. Tag does not indicate materials. Sosoo jeans are made by a company that focuses on quality. These pieces can be part of your wardrobe for a long while. The different colors and textures are very interesting. Pre-owned condition, normal wear. Please let me know if you have any questions:)