The two panniers in the Ortlieb Back-Roller City set can be used together on your bike, or just load up one. Tough, waterproof, stylish, and easy to clean, these panniers will fit rack diameters up to 16mm. The bright 3M Scotchlite reflectors improve visibility on gray days, too. Check out our pro (and daily bike commuter) Joshua discussing some of the reasons he loves the Ortlieb pannier set.

Ortlieb Back-Roller City Waterproof Bike Pannier Set