A shelter that includes a slider and a strut mechanism mounted on support posts of the shelter that automatically actuate and extend from the side of the support posts when the shelter is expanded from its collapsed state. The strut mechanism provides support for an eave that extends outside from all or a portion of the perimeter of the shelter defined by the corners of the support posts. An automatic hard-stop mechanism is incorporated into the support posts that prevent the eave sliders and strut mechanisms from becoming over-extended. The support posts are configured and oriented relative to the other components of the shelter frame and shelter boundary so to minimize the footprint or size of the shelter when in the collapsed state.