Miss Richie's sandals are from Modern Vintage.
These "Fabrizia" leather sandals with braided upper and 2 ankle straps with buckle closures are available to purchase from Shopbop in black, purple and sand for $225.
Here is Nicole spotted hiking with her boyfriend Joel Madden, on May 10.
She wore a pair of LnA cropped zipper leggings with a LnA side pocket tank in heather grey, Nike LIVESTRONG Air Pegasus+ 25 ESC sneakers and Ray Ban 3025 aviator sunglasses.
Singer 22 sells the leggings for $98.
Nicole's LnA leggings can be purchased in the UK from BunnyHug.co.uk for £66.
The top can be purchased from Singer 22 for $62