Description of Timbuk2 Blockhead Laptop Sleeve Protect your laptop with quilted goodness like Grandma used to make. Cozy corduroy lining inside and stylish Blockhead quilted fabric outside. She knew best and sew do we. Carry it in your Messenger bag. [ Features: Rugged nylon exterior Flap closure with velcro tab Plush corduroy liner Timbuk2 Quality Guarantee Small 13.6 x 10.9 x 2" Medium 15.6 x 12.4 x 2 " Large 16.5 x 12.4 x 2" X-Large 18.1 x 13 x 2