One store that has a great selection of these pants is J.Crew! This store is absolutely fabulous. It's so preppy and their clothing is really well made. Here are three pairs of patterned pants that I purchased today from J.Crew!
1) Minnie Pant in Foulard ($98.00)
1) Frenchi Woven Swing Tank ($28.00)
PS: Here's a fitting room selfie from J.Crew in the first pink and green pants!