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, designed for 13.3 inch MacBook Air, 13.3 inch MacBook Pro Retina, fit for Dell XPS 13 and maybe more 13 ultra books 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