Altra understands that men’s and women’s feet tend to have somewhat different structural needs, and the Intuition 4.5 is built specifically for women (the equivalent model for men is the Instinct 4.5). Fans of Altra’s zero-drop soles and roomy toe boxes especially like the versatility of the Intuition, which does well on any surface and at any speed—which makes them great ladies’ trail running shoes in the eyes of a lot of Altra fans.