Composite carbon outsole with patented multivent system
Lightened heel with one-way stretch Lycra

HRS-100 system reinforced with a 0.4 mm membrane
Main strap with ratchet closure and Velcro straps
Synthetic leather and nylon-laminated cycling mesh upper
COOLMAX Ergo Air Cool Stuff blue and Hot Stuff red interchangeable insoles
Decentered straps and outer rings
Visual display of cleat position compatible with DURA-ACE, SPD, TIME, LOOK and SPEED PLAY cleats
Heel reflector
Approximate weight (size 41/1 shoe): 285 g/10.05 oz
Power belt