Peak Design’s ode to the timeless and utilitarian duffel bag, the Travel Duffel (now in 4 sizes) is as beautiful as it is rugged. The carry-on-sized 35L & 50L Duffels are perfect weekenders, over-nighters, gym bags, or sidekicks to one of our larger travel bags. The 65L & 80L Duffels are monster gear-haulers, ruggedly dependable for airline check-in and road trips.