A wiper system including a wiper arm having a pivot end, attachment member and an elongate body. The attachment member includes a deck, a tab, wall plate, and a pin that extends transversely relative to the tab. The tab and the wall plate depend from the deck to define a channel. The deck extends along an inclined plane to maximize downward force of air current applied to the deck to reduce wind lift. The system further includes a wiper assembly having a wiping element, an elongated beam and a carrier. The carrier has sidewalls that define a track to receive the elongated beam and further includes a coupler to releasably engage the attachment member. The coupler includes a bore to receive the pin and a saddle to engage the channel. The saddle includes first and second guide surfaces to limit the rotational movement of the wiper assembly about the pin.