Read the three-color label as identification
Brown/Black/Tan describes the advertised appearance, not three materials or three different boots. The related size 9 record follows the same title pattern. Use those entries as size comparisons, while confirming the model on the actual item before making assumptions about an identical platform.
Width must be selected separately
The brown/black/tan 12W entry explicitly identifies a wide size; this 11 title does not. Keep length and width separate when comparing them. Moving to a longer wide pair solely because it is available can create a different fitting problem.