100% Pure Microfiber - 80% Polyester 20% Polyamide - Ultra Absorbent Unlike Cotton SOFTSPUN Microfiber Lifts and Holds Dust, Dirt, Grease, Oil and Spills Unlike Cotton SOFTSPUN Microfiber Absorbs 3-4 Times Its Weight Of Water & Dries 3x Faster Than Cotton Unlike Cotton SOFTSPUN Microfiber Uses Only Water To Clean, Needs No Cleaning Agents. It Lasts As Much As 500 Washes Much More Than Cotton & Requires Less Water Than Cotton To Wash