Built has introduced a new sleeve for the MacBook Pro that looks a bit different from the neoprene bags and sleeves I know them for. The MX Sleeve for 13″ MacBook Pro is ultra lightweight and protective. It’s made of EVA, and it measures 13.6” wide X 10” high X .9” thick. The exterior has a honeycomb design that keeps your laptop cool, and there’s a mesh lining to protect it. The MX Sleeve is TSA-checkpoint friendly and fits inside your gear bag. It’s $39.99.