Real clean design. And it doesn’t just look good; it smells good, too. That’s because the Gym Duffel from Bay Area-based bag maker Aer, features plenty of ventilation—big mesh pockets for your swampy workout gear as well as another mesh compartment for your shoes (up to size 13). The 32-liter duffel also features a separate zone for your clean clothes as well as durable YKK zippers.