The Alpha is the essence of the famous Joker series distilled into a basic ‘no frills’ package.
Upper: Microfiber upper. Fast doublestrap closure system. Padded CHS heel for extra comfort.
Midsole: Special anti deformation mid-sole
Sole: Ultra sticky BOREAL® Zenith Quattro outsole. 4-4.5mm thickness depending on size.
Characteristics: Incredibly comfortable and precise for long climbing sessions. Fit in your street shoe size to wear all day or in smaller sizes for increased precision.
Usage: Climbing courses, training (indoor and outdoor), and long routes.