I have for sale a like-new Bearpaw Wilderness Designs bug bivy.  I’ve had it for several years, but has been used less than a half-dozen nights, always on a sheet of polycryo.  This is an older one, it was the standard size at the time, but differs slightly from current specs.  As best I can measure, it’s about 30″ wide at the head, 24″ at the foot, and 87″ long.  If I remember correctly, the stated weight was 12 oz. including the pole, 10 oz. without, but I don’t have a scale, so can’t swear by that.  $80 includes Paypal fees and CONUS shipping.  Will ship to a Paypal-confirmed US address only.  PM if interested or with questions.  Pictures can be seen here.