Acme Made Skinny Sleeve XXS (StretchShell Neoprene) Black AM36924 Ultra-thin design wont add bulk to another bag. Our unique StretchShell neoprene is both water and stain resistant. Zipperless closure wont scratch your MacBook. Sewn-in reinforcement on both sides for extra protection. Stylish elastic band keeps the MacBook Pro securely within the sleeve.