The12 Costa Mesa - The 12

The12 Costa Mesa

The12 Costa Mesa is an independent gym located off of 17th Street close to Pacific Coast Highway and the 55 freeway. We run group fitness classes and bootcamps for all fitness levels.

Monday – Ignite

Designed with foundational and progressive strength movements, this Afterburn workout incorporates resistance training by utilizing free weights, bands, bodyweight, movement and functional exercise equipment so you can “Ignite” your way into the week. Targets: Chest, Triceps, Shoulders, Cardio

Tuesday – Drive

Fuel the Afterburn effect with this driven workout that targets muscular strength and endurance of the legs with an intense, fat incinerating focus on cardiovascular conditioning. Targets: Glutes, Quads, Hamstrings, Calves, Cardio

Wednesday – Burn

Developed to improve posture, eliminate lower back pain, and build strength; Burn fires up the metabolism and chisels the posterior chain utilizing the resistance of free weights, bands, bodyweight, movement and functional exercise equipment. Targets: Shoulders, Upper Back, Lower Back, Biceps and Hamstrings

Thursday – Recoil

Achieve better balance and stability, while promoting greater mobility, with this Afterburn workout designed to strengthen and shed fat from your abdomen revealing the ultimate six-pack. Targets: Abdominals, Core and Cardio

Friday – Explode

Speed, agility, quickness, and power take center stage in this signature Afterburn workout that harnesses athleticism and strength through the use of explosive movements to accelerate the Afterburn effect. Targets: Total Body

Saturday – Fusion

A dynamic, total body workout, Fusion delivers a hard hitting combo of challenging segments from earlier in the week with a few additional progressive movements, unleashing the Afterburn. Targets: Total Body

Sunday – Refire

Harnessing the power of the largest fat burning zones in the body, Re-Fire provides a second opportunity each week to target, sculpt, and shape the legs and core. Targets: Glutes, Quads, Hamstrings, Calves and Core

Read more about our unrivalled Afterburn Group Training Classes and discover how you can get into shape and lose weight fast.

Looking for a nutritionist to create customized meal plans for you?

The 12 offers Afterburn Nutrition Coaching for men and women looking to tone up, slim down, and keep the weight off. Personalized nutrition plans can be created for men and women at all stages of health and wellness.

Want to try us out?

We are currently running a limited time special offer: 2 FREE Afterburn Classes- valid for five days from your first session visit. There has never been a better time to get into the shape of your life!

Costa Mesa

140 E. 17th St. Ste B Costa Mesa, CA 92627
Direct: 949-200-9499 | Email:

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