I’ve been hopping on the backs of motorcycles since I was eight years old, and my dad first shelled out for a miniature helmet and a pair of pint-sized leather chaps. There’s no more intoxicating sensation in the world than feeling air whoosh all over you at sixty miles per hour. It’s almost enough to convince you that what you’re doing is not, in fact, incredibly dangerous.

According to the latest data available from the United States Department of Transportation, the number of deaths on motorcycles is over 27 times the number in cars. Every biker knows that they’re just one unexpected rainstorm away from disaster. Anything that you can do to reduce that risk—whether by wearing an armored jacket, or a bag that won’t swing around and tip you over at the exact wrong moment—might be worth the price.

Velomacchi’s 28L Roll-Top Backpack is designed with the specific needs of motorcycle commuters in mind. It’s a slim, low-profile and weatherproof bag that uses a clever rotating harness system to cinch the bag tight, keeping your center of gravity fully intact. This bag’s patent-pending straps use a magnetic coupler that hooks over your sternum, with clavicle hinges that adjust as you wear it across your torso.