The Ultra II is barefoot amphibious footwear for little explorers

it’s hard-wearing and waterproof yet lightweight and flexible

you will follow a clear progression to improve muscular endurance

a removable warm shearling and felt insole keeps feet cozy on colder days

so you can move with sure steps and full feeling

Primus Sport IV Preschool Stone Vegan The Ultra II is barefootOur beloved barefoot staple for little feet just got a big upgrade. The Primus Sport IV is now softer, more flexible and comfier than ever but still tough enough for all day play. Featuring a breathable mesh upper made with 100% recycled polyester, vegan* materials, a grippy multi terrain sole and easy tongue construction for independent movers, its ultra light and ready for action.