Bindi Irwin's grown-up Halloween

We're used to seeing them in khaki, but Bindi Irwin and boyfriend Chandler Powell have swapped their Wildlife Warrior uniform for a rather grown-up and cute couple's Halloween get-up.

Taking to Instagram on All Hallows' Eve, the adorable couple showed off their costumes, this year opting to go as Superman's secret identity Clark Kent and his love Lois Lane.

Bindi showed off her waist in a flattering black pencil skirt and white shirt, while her American-born beau tried his best to keep his Superman identity hidden behind a shirt and glasses.

And it seems Bindi will always be Lois to Chandler's Superman, with the 20-year-old commenting on the snap: "I am the luckiest guy alive. Can't wait to celebrate today."

Oh young love. These two are as sweet as candy.

• Bindi shares life lessons on her 19th birthday

• Chandler's sweet tribute to Bindi

However if you'd prefer to dress up like the famous Wildlife Warrior family, you're in luck, with mum Terri, Bindi and brother Robert spruiking their own khaki-licious outfits just in time for the ghoulie holiday.

Your beige-coloured dreams are coming true after Australia Zoo released the ultimate Halloween costume kit - an official croc hunter outfit.

For just $135, you can own the legendary 'Crocodile Hunter' khaki shirt and shorts, along with a branded cap and a green rubber snake.

While it might not be the scariest costume, it's certainly going to be the envy of all your friends.

Crikey.

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