REI Garage offers the JanSport Onyx 34L Travel Pack in Black for $59.73 with free shipping. That's the lowest price we could find by $50. It's water-resistant, the shoulder straps can stowaway, has a webbing loop for a bike light, and compression straps.
Street Moda via eBay offers the Lacoste Men's L30 Leather Flip Flops in several colors (Light Blue pictured) for $54.99 with free shipping. That's $10 off and the lowest price we could find. They're available in select sizes from 9 to 13.