Kickboxing black belt with almost 30 years experience offering classes to kids and adults of all ages in London. Burn up to 2000 calories !

Me and my mate did a sess with Zack, he's a total pro! I felt the program he put together made sense and it was really intense! I have no doubt you will loose those calories if that's your goal and build muscle at the same time. We did a thorough warm up (basically HIIT) then sparring, he was teaching us how to punch and kick. He was helping me to balance, checking what's weak, what needs more work. He was fun, but totally focused and he didn't let us waste any time. At the end we were beating sweat like Niagara Falls. Absolutely recommended.