Sierra Trading Post offers the Timbuk2 Commute 2.0 Medium 15" Laptop Messenger Bag in Blue/Black for $69.99. Coupon code "ALHEART3" cuts it to $55.96. With $9.95 for shipping, that's the lowest total price we could find by $3. Sales tax is added where applicable. This ballistic nylon shoulder bag measures 20" x 13" x 6" and features an adjustable, removable shoulder strap, top handle, keyfob, padded and corduroy-lined laptop compartment for up to 15" laptops, and more.