Rachel Bilson already has a successful line – Edie Rose – and a gig writing a fashion advice article for InStyle magazine, and her cool casual style indicates why.

While out grocery shopping, Rachel was photographed sporting a comfortable, casual, but stylish outfit.

Rachel threw a Chanel scarf over a long-sleeved gray shirt and wore a pair of fitted blue jeans. She completed the look with a fedora-style black hat, cool shades, and knee-high boots.

Love the beautiful engagement ring too!