Men's Twisted X Cellstretch Slip-On Driving Moc - Bomber The men's casual slip-on driving moc in full-grain leather features Twisted X® patent-pending CellStretch® comfort technology, ensuring that every step you take is backed by superior comfort. The slip-on moc has double gore panels that flex for ease of sliding on yet conform comfortably to the foot without the need for laces. The compression-molded EVA midsole with integrated CellStretch® tech, along with a molded rubber outsole provides the unmatched stability and durability you need to carry you from one adventure to the next.