Inateck 13-13.3" MacBook Air/Pro Retina Sleeve Carrying Case Cover Protective Bag, Water Repellent - Black (LC1300B) Internal dimensions: 12.9'' x 9''; - 33 x 23 cm; External dimensions: 13.7''; x 9.6''; - 35 x 25 cm, designed for 13.3 inch MacBook Air, 13.3 inch MacBook Pro Retina, fit for Dell XPS 13 and maybe more 13'' ultrabooks netbooks; The foam padding layer and super soft fleece fabric lining absorb bumps and shocks, preventing your MacBook from accidental scratches; Diving material layer in the middle and canvas layer on front side make this sleeve splash-proof; Top-loading zipper on the sleeve glides smoothly and allows convenient access to your MacBook; Being slim and lightweight, the case does not bulk your MacBook up and can easily slide into your briefcase, backpack, or luggage