The Shamrock features a versatile tunnel construction and is equipped with pre-bent fiberglass poles as well as external fiberglass rods for added stability and a tensioning system for the tent fabric. Numerous features make the enclosed vestibule ideal for round trips: standing height, four windows with curtains, a large front door that can also be used as an additional shelter, a large back door, large ventilation openings on the sides, ventilation openings at the front, and a roll-up tent floor that covers the entire interior area.