EP.9 │ ZKK Under Construction │ Top 5 exercises to build glutes │ Featuring Kirsty Duffield

This week we follow Zack 'King' Khan put Chemical Warfare athlete, Kirsty Duffield, through the toughest glute workout of her life in the new episode of 'ZKK Under Construction'; Zack's Top 5 exercises to build your glutes. Kirsty is a FitX and NABBA champion, but will she survive a workout with Zack? Let's see what she is made of ! 👀

Plus, this is a special episode with a little competition for you to get involved in!

If you want to stock up like Zack Khan, make sure to use ZKK15 for 15% off your next order.