# 2 SHAKE THAT BOOTY
Ditch the gym and blast your body with HIIT outdoor workouts
ACTIV5
Stick this workout pebble in your pocket to build rock-like strength anywhere you can find a square metre of space. It pairs with a smartphone app loaded with 100 seated and standing isometricbased training drills, and measures up to 90kg of muscle force. £120 / activ5.com