How did the Mamluks manage to capture the fortresses of the crusaders despite having no armor or experience with Western castle tech?>muh they had armorThis is a contemporary depiction of the Siege of Tripoli. The mounted soldiers scene in the foreground are Mamluks, they are literally wearing nothing for protection.
Unlike many Crusader forces, which were often fragmented and politically divided, Mamluk armies were highly centralized under Baybars.