Sumdex ImpactGuard Insert Sleeve 15.4" Computer Case polyester 12.5" high 15.75" wide Made of polyester shell and polyurethane. SensaTech Memory Foam padding throughout entire sleeve. Memory Foam and it' s specialized cellular composition conforms and shapes itself to how the person carries their case, distributing pressure evenly for continuous protection against daily bumps and drops, extending the life of a laptop. Convenient nylon handles. Available in 3 sizes to fit virtually all PC laptops (12.1 " - 17" wide screen sizes)