Kristin Kellner has been an instructor with the San Francisco Bay Club since 2005. She is an ACE certified group fitness instructor and NASM certified personal trainer. Kristin also holds several specialty certifications such as willPower and grace, TRX Suspension Training and Schwinn Indoor Cycling. Kristin strives to make each of her classes a fun and challenging experience and is dedicated to inspiring her students to be the best they can be.