For the redevelopment of the classic Quantum, we worked with the Huber brothers, Alex and Thomas, to develop an all-around performance shoe for any climbing setting. The Hubers tackle a diverse range of climbs with many different angles and rock textures, so Stealth® C4™ (our most versatile climbing compound) was a natural choice for the outsole. The shoe has a stiff midsole and a fully synthetic Clarino upper, so it stays comfortable for extended periods of wear. The tongue is constructed out of perforated Ariaprene which conforms to the foot and provides unmatched breathability. Built on an entirely new last, the Quantum has a wider fit than our other downturned models which allows your foot to sit in a more natural position.
Downturned, Stealth® C4™ rubber outsole (4.2mm)
Fully synthetic Clarino upper — No stretch
Velcro closure for easy on/off
Comfortable, wide last construction
Breathable Ariaprene tongue
Steep, overhanging routes & long bouldering sessions.