My feet stay much drier. So far I have been using my shoe booties and keeping the bottom vents open on my shoes. By allowing a little ventilation with the improved wicking of the socks my feet are both warmer and dry. Before I was doubling up on the socks and blocking the vents shut with tape on my shoes. This practice was cutting off circulation and not allowing my feet to stay dry. My feet were always cold for a few hours after every ride. The DTVS have been a great addition to my winter cycling gear.
Exciting to hear! I want some too!
~~~Saddle up and hit the gun decks~~~
I think they were pushing to get into more REI stores, but you may find them in your local camping/outdoor shops. Or see if there is a store locator on their website. (I should know if there is or not, but I'm too tired to remember or even check)