Louis Garneau - Tri-400 Triathlon Bike Shoes The high performance, racer fit reduces stack height to pedal. The microfiber and Icefil upper is light, cool, and breathable. The Boa IP1 micro-adjustment system and reverse hook and loop closure provide a customized fit. The patented Carbon Air Lite outsole is extremely well ventilated and the stiffest outsole from LG. The patented Icefil Ergo Air insole allows you to ride in all weather. The heel retention system secures your heel and increases power transfer. Reflective heel for increased visibility. Titanium cleats fit all major road pedals. Weighs 235g (8.3oz) in size 42.