Basil Mara Double Pannier Cycling Bag Size Guide: S - (26 Litre) M - (35 Litre) L - (47 Litre) Made From Water Repellent 600D Polyester Foldable Material 26 Litre Capacity For Plenty Of Storage Double Reflective Stripes On Front And Back For Added Visibility Features Stitched Cut Outs For Luggage