. Our best Explorer case yet this 4th edition continues the tradition of durable 24/7 protection that doubles as a carrying case. The ballistic nylon exterior delivers weather-resistant reliability along with an updated look. More than just great-looking the molded waves create interior air flow channels that dissipate heat & keep devices cool. Dual carry handles provide a secure grip while an optional removable shoulder strap is available for an added carry option. Weve even enhanced the ID holder for added security. Of course you can still count on durable protection against drops scratches & dirt provided by the rigid exterior & padded soft-touch lining. Perfectly sized for 11" Chromebooks/laptops & 13 Mac Books. Waterproof exterior Tightly woven from waterproof nylon this tough exterior repels moisture well beyond the ability of simple spray coatings – for true waterproofing that lasts as long as the case. Cooling interior Hot laptops are loud uncomfortable & can lead to costly damage. This case keeps it cool with rows of heat-dissipating airflow channels molded right into the design. Superior in-case stability Thick elastic bands with rubber microbeads grip the laptops base. Scratch-free Tech-Grip hooks attach the display bezel to the case with durable elastic minimizing screen movement & preventing slipping. Smart ID insert Updated ID holder with interior insert prevents pranks & guards against removal..