YhThis appears to be a light green, double-pocket zippered laptop sleeve made of a cushioned material.
It features a small top handle for carrying and secondary pockets for accessories.
Similar sleeves are available in sizes ranging from 11.6 to 16 inches and are described as shock-resistant and water-resistant. [1, 2, 3, 4, 5]
Let me know if you would like to search for a specific size or brand for this laptop sleeve.