Keep riding! Flat tires and mechanical issues have no power to end your ride, not when you're prepared with a well-stocked Tool Roll. -tube pocket easily fits up to 700x40 rubber tube with all three pockets available, I'm currently riding with a 27.5" x 2.35" TPU tube in mine with room to spare -two tool pockets have plenty of room for your particular blend of tools/flat repair/tater tots -cobra buckle locks your roll securely in place, extra long strap is provided for cut-to-fit versatility -1000D Cordura or XPac exterior, high-vis interior -13"w x 11"h when fully open, pockets are 5" deep and 4+" wide