Gossamer Gear's famous backpacking tent. The company no longer makes this tent (nor do they currently offer any tent).

One-man with vestibule; supported by trekking poles (not included); only 17 ounces. With ground cloth.

I bought this new from a limited run in 2011 for $300. Seams fully sealed. Used for two backpacking trips in the Sierra Nevada. I'm selling this because I've decided to go for a bivy sack instead.

A review here from 2009:
http://www.backpackinglight.com/cgi-bin/backpackinglight/reviews/display_reviews.html?forum_thread_id=13653