Alexandre Mulle had been watching wingsuits take this iconic line for a decade before taking on this feature called “The Crack” in Walenstadt, Switzerland with his speedflying rig. Unbelievable precision execution in terrain that doesn’t tolerate inaccuracy….aka nutso.

Francis Xavier is a seasoned writer for Unofficial Networks, bringing a lifetime of outdoor experience to his work. Having lived in a ski resort town for years he has a deep connection to mountain culture....