eeSilk aluminum left, eeSilk carbon right
Cane Creek just announced some updates to the eeSilk 20mm travel seat post. There is now a 27.2mm and 31.6mm diameter post in both aluminum ($199 375mm length) and carbon ($299 350mm length). These new eeSilk posts have an 8mm offset, come with new 300 series stainless steel axles, and have a 250lb rider weight limit.
-eeSilk – 27.2mm – 345g; 31.6mm- 350g
-eeSilk Carbon – 27.2mm – 295g; 31.6mm – 305g
-eeSilk – Aluminum Shaft, 300 series stainless steel axles, stainless steel hardware
-eeSilk Carbon – Carbon shaft, 300 series stainless steel axles, titanium hardware
See more at Cane Creek.