STM Ace Vertical Super Cargo STM-117-175K-01 Carrying Case, Notebook Carrying Case, Black, 1680D ballistic nylon, 600D coated polyester, Screen size 11" - 12" / 27.9 cm - 30.5 cm, Water-resistant, removable shoulder strap, adjustable shoulder strap, impact-resistant, rugged, Shoulder carrying straps, top carrying handles. Safeguard your schools investment with the Ace. Designed with direct feedback from educators and district level IT professionals, we have built the ultimate protective bag for the K-12 classroom environment.