As one of its daily deals, Woot offers the Trek Light Gear Ultralight Bindle 14-Liter Daypack in several colors for $20.99 plus $5 for shipping. That's the lowest price we could find by $7. It compresses into a 3.5-oz pouch that can fit in your pocket and features a zippered main compartment, interior pouch, and hidden, zippered security pocket. Deal ends today.