This is a blue BPL Vapr Quantum Bivy Sack that I used on one trip and ever since it has been in the cupboard. Here is a link to the product http://www.backpackinglight.com/cgi-bin/backpackinglight/vapr_pertex_quantum_ultralight_bivy_sack_r.html. It is in excellent condition. I am 5'10" tall and it was a good fit for me.
$100 includes shipping to the US.
Contact me on firstname.lastname@example.org