USOutdoor.com:

Bibler Hooped Bivy (Long)A bivy sack designed to give your sleeping bag protection from the elements and you warmth to your night, the Bibler Hooped Bivy is a breathable and waterproof bivy designed for climbers, bicyclists and other people looking for a lightweight bivy. Its hoop has been updated to a length of removable copper wire sewn into the sack, so there's nothing to set up and no chance of a broken piece. All of the seams have been factory seam sealed, so there's less of a chance of preciptation coming through. As used in all Bibler Tents, the Hooped Bivy is made of waterproof and breathable ToddTex laminate, and at 22 ounces, this durable, stormproof shelter is ideal insurance for that unplanned bivy night. Features:Color:GreenMeasures: 90" x 35" (long version is 99" x 35") and comes with a stuff sack. Weight: 25 ouncesArea: 1.39 m2 (15 sq feet)Weight: 695 g (1 lb 9 oz)Boxed head and and foot areas keep things roomy!

Moosejaw.com:

Free Shipping. Black Diamond Hooped Bivy Sack (Fall 2008) Compact, ultralight, stormproof bivy sacks, the Hooped Bivy Sack by Black Diamond uses a sewn-in flexible wire, a dual-slider zipper that opens in the middle and a no-see-um mesh covered opening gives you some adjustable breathing space. It s built from waterproof, windproof and breathable ToddTex with a polyurethane-laminated floor. For security, the double storm flap and rain gutter use a seamless construction, and all other seams are factory taped. The Big Wall Hooped Bivy has all the features of the Hooped Bivy but incorporates an RF-welded tie-in point for total protection while you re clipped in.Specs: AS PACKAGED STD: 805 g (1 lb 12 oz) BIVY ONLY STD: 695 g (1 lb 10 oz) AS PACKAGED LONG LONG: 890 g (1 lb 15 oz) BIVY ONLY: 780 g (1 lb 12 oz) STD BIVY: 229 X 89 cm (90 x 35in.) LONG BIVY: 251 X 89 cm (99 x 35in.) PACKED: 15 X 48 cm (6 x 19in.)

BackCountry.com:

The Bibler Hooped Bivy Sack is a superlight, bivouac sack designed for climbers, bicyclists and other light weight fanatics. The hoop has a Delrin rod sewn into the sack, so there is nothing to set up and no parts to lose. Made of the same waterproof and breathable ToddTex laminate as used in all Bibler Tents, the hooped bivy sack collects less condensation than any other bivy bag sold in the U.S. All of the seams are factory seam taped. The floor is coated nylon taffeta, with a slightly tapered foot section for efficiency. Both the foot and head ends of the Bibler Hooped Bivy are boxed, so they wont cramp your toes or compress sleeping bag loft. The double storm flap and rain gutter have no sewn seams, so they cant leak. The dual slider zipper in the Bibler Hooped Bivy opens in the middle for adjustable ventilation and the opening is also covered by zippered no-see-um mosquito netting. At 22 ounces, this durable, stormproof shelter is ideal insurance for that unplanned bivy. Measures 90 x 35 (long version is 99 x 35) and comes with a stuff sack. Completely factory seam taped.

USOutdoor.com:

Bibler Hooped Bivy (Standard)A bivy sack designed to give your sleeping bag protection from the elements and you warmth to your night, the Bibler Hooped Bivy is a breathable and waterproof bivy designed for climbers, bicyclists and other people looking for a lightweight bivy. Its hoop has been updated to a length of removable copper wire sewn into the sack, so there's nothing to set up and no chance of a broken piece. All of the seams have been factory seam sealed, so there's less of a chance of preciptation coming through. As used in all Bibler Tents, the Hooped Bivy is made of waterproof and breathable ToddTex laminate, and at 22 ounces, this durable, stormproof shelter is ideal insurance for that unplanned bivy night. Features:Color:GreenMeasures: 90" x 35" (long version is 99" x 35") and comes with a stuff sack. Weight: 25 ouncesArea: 1.39 m2 (15 sq feet)Weight: 695 g (1 lb 9 oz)Boxed head and and foot areas keep things roomy!