If you tuned into Bianca Spender on Monday, it would have felt somewhat like a trip down memory lane. That ’70s show had all the classic tropes of the era; kick-flares, jumpsuits and green in myriad hues – sage, mint, olive. But above all, it was the blow-wave that was the greatest giveaway.

Big, bouncy, bountiful; it really was quite the blow-out. Created by Michele McQuillan for Goldwell, the blow-wave was soft through the mid-lengths, then at the root, gently twisted to one side with height. “We’ve kept a bit of polish to the look by keeping the roots lose to the head, but we’ve also incorporated a natural twist that we’ll tousle and give some air to,” McQuillan noted backstage.

But it wasn’t all polish and pizazzaz, a small dose of naughty was in order. According to McQuillan, she’s the kind of “polished woman who’s had a blow-dry a few days before and she’s going out partying, so she’s just going to brush it through.” A working girl, who also likes to live a little. “I want it to be quite gritty and quite lived-in but still have a bit of polish on the ends.”

It’s a look easily mimicked at home. To begin, generously spritz Goldwell StyleSign Volume Double Boost Root Lift Spray at the root. With a medium-sized round brush, curl and blast hair with the Dyson Supersonic Hair Dryer, then repeat with the Dyson Supersonic Cold Shot button. This will set the hair and provide that desired polish to the ends. Then, spray Goldwell StyleSign Texturiser through the mid-lengths, and softy tousle until a slightly gritty texture is achieved. Lastly, take a small section of hair and delicately twist and pin to one side, using an almost quiff-like quality.

Now just add a pant-suit and heel, and you’re good to go.