Five days of travel bliss hinge on a few I-need-a-miracle plane to train connections. The roller bag will stay at home. 2500 cubic inches of carry-on put space at a premium. Stressing about that single pair of shoes for your bike, paddle, hike, and sprint for the shuttle getaway? Try a supportive yet minimally lined upper; quick dry, breathable, protective mesh; and BFit support. The Echo. Easy-breezy.