Frontrunners offers the most current line of fitness shoes and apparel, with a wide variety of brands. Their staff meticulously analyzes your feet to offer the best in hiking boots, water shoes, and stylish athletic shoes to suit your needs. Conveniently located on San Vicente, their shoe and clothing stores are in the same complex, with equally friendly, personable, and enthusiastic staff. 
310-207-0216
11620 San Vicente Boulevard
Los Angeles  90049

New Balance offers all types of shoes (from running to leisure) as well as their own line of fitness clothing.
310-829-2900
2600 Wilshire Boulevard
Santa Monica  90403

Boasting a “top running club” by Competitor magazine, Top to Top specializes in running shoes and apparel, offers a running club that meets at 6:30 every Wednesday night (with varying levels and distances,) and has one of the most knowledgeable staff bases on the Westside. Come in to get custom fitted by an expert in gait whether you are lacing up your first pair of running shoes or are already a marathon junkie.
310-829-7030
2621 Wilshire Boulevard
Santa Monica  90403

Lululemon offers a wide selection of high-quality yoga, running, and active apparel, as well as a wide-variety of locations. Their staff is very friendly, fitness oriented, and willing to answer any questions you may have. Bonus: most locations offer complimentary yoga classes and running clubs! Check the website for schedule.

Santa Monica Location
310-319-9900
1457 3rd Street
Santa Monica  90401

Brentwood Location
310-442-3563
11920 San Vicente Boulevard
Los Angeles  90049

Road Runner Sports uses the most comprehensive analysis of your running form to fit you with the best-possible shoe. Their knowledgeable staff (required to go on group runs multiple times a week to test out new shoes) take a video of you running barefoot on a treadmill to measure pronation, if applicable, and to analyze pressure points. They also offer a great sale rack and have a 90-day return policy that encourages you to run in the shoes to make sure they really are the best for you.
424-214-3535
1338 4th Street
Santa Monica  90401

Lucy offers stylish fitness apparel that is very similar to Lululemon. Specializing in comfortable, yet functional clothing, Lucy is a go-to for the exciting patterns and styles, as well as friendly staff.
310-255-9994
1230 Montana Avenue
Santa Monica  90403

Lorna Jane, an Australian brand, is quickly building its presence in the United States workout apparel market.  With modern prints, and stylish fits, Lorna Jane has you covered whether you are running, hiking, spinning, or lounging. Vibrant colors and comfortable inseams make you want to work out. 
310-395-7700
395 Santa Monica Place
Santa Monica  90401