Built to meet the rigors
of cold weather workouts, the
lightweight asymmetrically shaped
Catalyst is the shoe of choice for
winter runners, multi-sport athletes and
aerobic fitness enthusiasts
The Piranha's
revolutionary bladder-molded carbon
fiber frame sets this shoe apart from
all others. Lightweight design and
secure traction make these shoes ideal
for running or jogging in packed snow on
flat or gently rolling terrain.