so the front bag can be quickly transformed into a shoulder bag

less leaks and faster pumping

It absorbs shock

promote blood circulation and even relieve rheumatism pain

rear wheel

ROCKBROS Fahrradhelm Integrierter Rennradhelm Magnetische Schnalle EPS+PC Size:L so the front bag canEPS+PC : The ROCKBROS bicycle helmet combines shock absorbing EPS with a robust PC shell manufactured with in mold technology for maximum protection. Magnetic buckle : The innovative magnetic buckle provides more comfort when putting on and taking off the helmet, compared to the conventional buckle. Adjustable : Available in sizes M (54 59 cm) and L (58 63 cm), the helmet can be individually adjusted to the head size using the adjustable dial.