Roxxo continuously adjustable belt We have developed two new belts for trousers and shorts. Read more about the Roxxo belt below or find the ZipZone belt here. Roxxo belt is a wide and strong 38mm wide webbing belt. Roxxo belt is a strong textile belt, infinitely adjustable with an aluminum belt buckle. Our belts are durable and saltwater resistant. Roxxo belt sits close to the body, the belt buckle is flat and does not get caught in clothing, fishing line, tall grass and the like.