So they protect themselves effectively against the little pests (insects and even the smallest biting flies stay outside). Also continue to enjoy the view a good view is guaranteed. Comfortable is also the central zipper, which can be opened and closed from the inside and outside. The fastening is done laterally and at the top with Velcro. Additional support is provided by the upper press studs (are screwed on). The weighting at the bottom is done by lead tape. The high quality gauze is black.