VJ Ultra 3.1 - Unisex ChicknLegs 5Ah is our most powerful

5Ah is our most powerful long-distance battery

Energy Foam and Active Chassis for the best balance of comfort

One Superlite is an indispensable companion for your next race

and three micro-adjustable buckles

VJ Ultra 3.1 - Unisex ChicknLegs 5Ah is our most powerfulDesign Update (3. 1): Same performance, same fit, just new graphic positioning for 2026. The Ultra 3 is a more modern take on the Ultra 2 with its bouncier and softer SuperFOAMance midsole which is made of hi tech and ultralight nitrogen infused material that offers extreme cushioning and energy return. This new foam is a modern, supercritical foam that is lighter, more responsive, more comfortable and more propulsive than a traditional EVA foam.