I bought these in mushroom, size 10, for my daughter. She wears size 9 1/2 shoe; the size 10 boot fits her nicely. I would describe the mushroom color as a medium taupe; grayish brown. Her calf, at the largest point, measures a little less than 12 3/4". When she wears the boot w/o the cuff, it covers her knees.  She prefers to push the boot down and wear it slouchy.  The suede is soft with a fabric lining, and she said the boot is easy to put on. The measurements given in the product's description are accurate.