Gaerne gcoste spd sl road shoesgaernes gcoste spd sl road shoes are light comfortable and breathable also packed with technology like the air ventilation system ergonomic heel cup and multiple closure systems these road shoes pack a lot of performance ready tech into a pair of shoes climb in comfort and spin along the flats at optimal speed with this optimal gaerne road shoe featureslightweightbreathablecomfortabledurabledirectly compatible with spd sl and speedplay style cleat engage