Build strength and stability and help flatten those abs!

How to start the 28-day Core Challenge

Each week for the next four weeks, you'll challenge your core with a new exercise.

Each day he should try to make the exercises harder. Join our Jack & Hill Studio

Virtual Facebook Group https://www.facebook.com/groups/1729329327359939 to

share your progress and find motivation! Be sure to use the hashtag

#28daycorechallenge so we can keep track of your posts!