Costume designer Kelli Jones walks a fine line when it comes to dressing motorcycle matriarch Gemma Teller Morrow (played by Katey Sagal) in the FX drama "Sons of Anarchy."

"Gemma is my favorite character because it's a mix of keeping it sexy biker but not slutty," Jones tells Zap2it. "She's the matriarch, but some of those women do dress a little over the top. I need her to look sexy and rock 'n' roll without going too over-the-top with a little too much skin. Everything head-to-toe with her is very specific, from where the sleeve is on the arm to how low the top goes."

Jones' staples for Gemma include leather jackets and vests -- mostly from Royal Underground by Nikki Sixx and Kelly Gray -- and skinny jeans and killer belts. She also wears Frye boots and crocodile and chain-link heels by Mary-Kate and Ashley Olsen's line Elizabeth and James.