This outdoor store has colonised the Latin Quarter, with some two dozen different boutiques scattered around its original shop that opened on rue St-Jacques in 1941 (actually a few doors down at No 38). Each space is devoted to a different sport: climbing, skiing, diving, camping, biking, water sports and so on.
Ask cashiers for a list (in French) and map of the various stores.The branch next door sells everything imaginable for running and cycling.