If you're at ease with technology, you're at home in Quarks. No other brand incorporates as many advanced features for lightness and comfort. The Duo Density footbed cradles the arch with firmness, yet cushions the rest of the foot. The Dryz IntelliTemp Moisture and Temperature Management System wicks away wetness. Starting at 4.3 ounces, your Quarks weigh next to nothing. For sporty looks and kick-back comfort, it's Quark.