They are yearlings. I can't really tell what the available colors are. They are listed at Tan (only 11.5), Brown (small sizes & 11.5), & Black (many sizes). I'm assuming that the Brown is Chestnut and the Tan is Dark Tan (given the color swatch).
Rolo
http://www.sierratradingpost.com/p/3...and-Women.html
Rolo
http://www.sierratradingpost.com/p/3...and-Women.html