Five Ten New Quantum

The shoe has a stiff midsole and lined Clarino synthetic upper, so it stays comfortable for extended periods of wear. The tongue is a perforated ariaprene, which conforms to the foot and provides unmatched breathability. The Quantum is built on a new last; it is slightly downturned and a bit wider allowing your foot to sit in a more natural position. KEY FEATURES Stealth® C4™ rubber outsole (4.2mm) Lined, synthetic Clarino upper ‐ No stretch Speed lace closure system