Men's NOVABLAST 4 Size:15 An American symbol of rebellion

An American symbol of rebellion and freedom

The Siren has a one handed quick pull cord and produces 115db (as loud as an Ambulance

Complete with an original BIRKENSTOCK cork-latex footbed for the ultimate in all-day support

Versatile Wear: Perfect for casual outings

Men's NOVABLAST 4 Size:15 An American symbol of rebellionThe NOVABLAST 4 running shoe features a new midsole and outsole geometry that helps produce an energized ride. A tongue wing construction in the upper helps improve the fit while reducing tongue movement. It's complemented with an engineered woven upper that offers more stretch, ventilation, and durability. FF BLAST PLUS ECO cushioning is made with 20% recycled bio based content. This material helps create softer landings and a more energized toe off