Patagonia Lightweight Travel Pack for $37.93.  Select free ship to-store for in-store pickup at REI.  Otherwise shipping is $5.99, for a total $43.92 shipped, or, shipping is free for orders over $50.  If needed, use this Filler Tool to pad the order to qualify for free shipping.  Here is a screenshot for your reference.  It features lightweight ripstop nylon with a polyurethane coating, foam panel, main pocket cinches shut with a drawcord, lid pocket with key clip, and exterior mesh pockets.  Most places have it for about $79.