I have 3 s2s eVent waterproof compression sacks that I have never used, except for one of them one time for an overnight (think it was the xs, but not positive). This is from REI:
*Backpacker April '07 notes this sack's genius ''...lies in the breathable membrane, which moves trapped air out of the sack more easily...''
*This valve-free dry sack uses a breathable base made of waterproof fabric, which allows air to be pushed out, but keeps water from entering.
*Waterproof and air-permeable eVent™ 70-denier nylon fabric has reinforced stitching on all stress points for durability.
*Polyurethane coating offers the ultimate in waterproofness; waterproof seams are tape sealed and double stitched for added weather protection
*Roll-top Hypalon® closure with lid and four straps evenly compresses and maintains compressed size
*Compact and lightweight design; features a pull handle on bottom for easy transport
The sizes are XS (6L) $25 new, Small (10L) $30 new, and Medium (14L) $35 new.
Willing to take half, or $45 for all three. I will pay Paypal fees and shipping to ConUS.