Mares Avanti Quattro +Mares Avanti Quattro Plus Diving Fins The Mares Avanti Quattro Plus diving fins take performance to the next level. Designed with updated materials, they provide greater thrust and responsiveness while maintaining the comfort and reliability divers expect. Whether youre diving in calm tropical waters or braving strong currents, these fins deliver consistent power with every kick. Thanks to the proven Channel Thrust Technology, the Avanti Quattro Plus