The Seat Sack 15" Storage Pocket features a durable cotton and poly laminated fabric construction. It is flame-resistant and easy to clean with convenient machine washable materials. The Black Seat Sack Pocket measures 15" x 10" with a 2" gusset that offers ample storage space to accommodate books, papers, school supplies and more. Provides an easy to reach resource for children in the classroom. Features a clear pocket to insert the students name. Recommended for grades 2 to 3.