Ratio Et Motus We predict big things for New York-based brand Ratio et Motus and its cult 'Twin Frame' tote. Founded in 2018 by Angela Wang and Daniel Li, its fans already include Man Repeller's Leandra Cohen and sisters Molly and Reese Blutstein. Although inspired by classic styles from the '50s, this black leather design feels entirely modern thanks to the detachable clutch at the front - unscrew it and use in the evening.