Woot offers Stansport Pop-Up Multi-Purpose Shelter for $49.99 (orig. $105.99) + Free Shipping with Prime. 

Product Description:
Our Pop-Up Multi-Purpose Shelter is the perfect accessory for you next outdoor event. Great for outdoor sporting event such as soccer, baseball and football games! The large design will fit one adult with a chair comfortably. The transparent front door and side panels provide a wide range of view, and keep you fully enclosed when zipped shut. Features three zip down windows with mesh screens, and 8 tie down loops with stakes and guy lines for anchoring in place.