1200 D twill polyester with EVA 28' expandable EVA rolling vertical 24' expandable EVA rolling vertical 20' expandable EVA rolling carry on 2 large front pockets Covered interior Locking telescopic handle In set blade wheel system Dimensions 18'' x 102.5'' x 28'', 16' x 92.5' x 24', 14' x 82.5' x 20' 5 year warranty Expanded Vinyl Acetate E.V.A. is a cross linked vinyl based material. It is used for its cushioning qualities and has an extremely wide range of applications due to its inherent strength and lightweight character. The unique features of this material work extremely well in luggage styling, as it is both flexible and lightweight and resists damage through its cushioning quality. E.V.A. is strong, durable, protective, firm and flexible at the same time, lightweight, and water resistant. E.V.A. is the material used widely in cross training tennis shoes.