Groupon has the Timbuk2 Classic Quickie 13″ Notebook Sleeve in Black/Gunmetal for $19 (45 – 58% instant savings) with Free Shipping for limited time. Deal expires September 5, 2012. Limit 5 per person.

Timbuk2 Classic Quickie Notebook Sleeve can hold most 13″ notebooks and features exterior pockets, D-rings, tuck-away handles, removable shoulder strap, and more.