The Mountain Hardwear Hoopla 4 is a 4-person, ultralight, simple air-light floorless shelter designed for the minimalist. One Trussring, one hiking staff and a single layer of thin structural fabric separates the thru-hiker and her gear from the elements. Compact and light enough to serve as a day-hiker's "11th essential" emergency refuge, large enough to serve as a backpacking group shelter as it seats 4. Traditional round shape deflects wind, modern structure and reinforced stretchless seams keep it light and add stability.