500 Gram Tents:

On Massdrop this morning Big Sky’s Wisp one person tent @ 567 grams (300 grams in Cuben!) for US $159.99 & US$11.75 postage: http://bigskyproducts.com/big-sky-wisp-1p-trekking-pole-super-bivy-tent.aspx This has got to be good value, and must start to make you question why you might still be lugging around that perhaps 2 kg tent. There is even room in the vestibule for your pack and Jack Russell!

Backpacking Light in Melbourne stock Big Sky Wisp 1P tents:
https://backpackinglight.com.au/store/big-sky-wisp-super-bivy-1p-tent/dp/9445

See also:

http://www.theultralighthiker.com/new-decagon-octagon-tyvek-igloo-tent-design/

http://www.theultralighthiker.com/honey-i-shrank-the-tent/.

http://www.theultralighthiker.com/the-deer-hunters-tent/.

http://www.theultralighthiker.com/does-spot-like-to-hunt-deer/

http://www.theultralighthiker.com/tyvek-solo-fire-shelter/

http://www.theultralighthiker.com/tyvek-tent-designs/

http://www.theultralighthiker.com/tyvek-twin-fire-shelter/

http://www.theultralighthiker.com/one-pole-tyvek-tipi/

http://www.theultralighthiker.com/tyvek-bivi/

http://www.theultralighthiker.com/new-tyvek-forestertent-design/

http://www.theultralighthiker.com/tyvek-jack-russell-rain-coat-13-grams/

http://www.theultralighthiker.com/catenary-curves/http://www.theultralighthiker.com/ultralight-chairgrounsheet/