(816) 434-5408 920 NE Columbus St. Lee’s Summit, MO 64086
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If you are looking for a Fitness Center that is modern, unique and serves all of your needs, then look no further. We are a locally owned and operated 24 hr full access Fitness Center loaded with the latest strength and cardio equipment! We pride ourselves on our immaculate cleanliness and getting to know each one of our members personally. We have the greatest staff of GroupX Instructors with the most variety of classes and a brand new commercially installed surround sound system. We also offer Kids Club play center, an amazing Smoothie Bar and our Award winning FLEX 365 Personal Training, established and growing since 1998.

Daily motivational support, consistent nutritional analysis, and safe, effective exercise programs you will stick with. Now is the time. Here is the place. Regardless of your fitness level, fitness goals, or fitness history, we're here to motivate you toward your goals. We have the experience and training that will help you get there... and stay there.

Welcome to FLEX 365

We address the whole body and lifestyle to help you REDEFINE YOU.

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There are many ways to shed some excess pounds but usually, just a little bit of jogging won’t do the trick. Your customized program will focus not only on achieving your desired weight loss, but also in maintaining it long-term.



Muscle Training

We will focus on your body placement, biomechanics and range of motion...paying close attention to your technique to ensure safety. We "Isolate not annihilate"

Training Programs

Mon - Thurs :
Friday :
Saturday :

5:00 am - 8:00 pm
5:00 am - 7:00 pm
8:00 am - 6:00 pm

24 HOUR Full Access Facility

Several Monthly Options Available

Call Today For The Best Option That Fits Your Needs.

Call Today!


Come in and take a tour today.

FLEX 365 Redefine You. 920 NE Columbus St.  Lee’s Summit, MO 64086 (816) 434 - 5408

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Weight Loss Muscle Training Trainers

Vitamins &

Announcing our new product store!!

Order Today!!

Store 25% off

Stay Up-To-Date with what is going on at FLEX 365!

Don’t miss out important dates!

Welcome our new trainer Michaelynn

Classes that are listed on-line ​​

Preschool class age 3-5
Mon 9:30am, 5:00pm
Tues 10:30am, Wed 10:30am

Tumble/Fitness class age 6 and up
Mon 7:15pm
Tues 7:45pm, Thurs 7:45pm

$30 a mnth for Flex members
$40 for non-members

Sign-Up for Classes

The end of exercise is here!


(enter our zip code 64086 when signing-up)

November 15, 8am-4pm


Instructor-Sherrie Hill