Keeping this headdress on while biking must have been a challenge.

When it's the heat in the middle of the Nevada desert, clothing is limited, and sometimes even optional at Burning Man — "an annual art event and temporary community based on radical self expression and self-reliance in the Black Rock Desert of Nevada."

But for those who do choose to wear clothing, it's all about the costumes.

And the ornate outfits have become a huge part of the festival.

Bikinis, body paint, tutus, masks, headdresses, wigs, floral crowns and feathers  it's all there!

Often all worn at once.

Everyone uses bikes to get around the Burning Man desert.

Great pose too.
But that doesn't stop people from breaking out their best costumes.

Fancy hats are common.

You would think his head would get pretty hot in there all day.

He would be hard to miss among the crowds.

Like this creative dog-in-a-cage one.

The heart sunglasses are cool, too.

We love this outfit's unicorn vibe.

Segways seem like an ideal way to get around.

The floral shirt adds a nice touch.

Couples often coordinate.

Those feather wings are really something.

This pair went all out.

Walking on these doesn't seem easy, but they make it look fun.

That's a bold dress to wear in the desert.

These guys certainly won't lose each other in the crowds.

This lace umbrella certainly wouldn't work in the rain, but it's great in the sun.

Umbrellas are used more as a fashion accessory than to keep the sun away.

Look at those furry boots.

It's hot at the festival, so any shade is more than welcome.

Braided hair is big.

Feathers and braids is a winning combo.

Both long and short.

We're not exactly sure what her "hair" is made of.

The headgear gets pretty wild.

A good-looking bunch.

This costume features some great color coordination.

This group had matching feathered mohawks.

Let's hope there's a zipper on those boots, otherwise we'd never take them off.

This feather mohawk was cool too.

These look like they're from the future.

The detail on her top and skirt is awesome.

You'll come across all kinds of sunglasses.

The purple cape really completes this costume.

Feathers are always a trend...

This festival-goer looked straight out of Vegas.

Scarves and goggles are used to keep the dust away.

Whether as part of a showgirl costume...

You can never have too many feathers.

Or skirts....

This skirt is quite eye-catching.

Or as crowns.

She's basically carrying around two birds on her head — and we're here for it.

Headdresses are a fave year after year.

Some wigs were varying shades of one color.

This one is especially eccentric.

So are wigs.

This is a unique shade of red.

Wigs of all colors to match every outfit.

This is creative.

Some people get creative, like this guy who made a hat out of straws.

We're guessing this one was inspired by a starfish.

Recycling is always a good strategy when putting together a costume.

Or this star-shaped one.

We're not sure what the white one was made out of.

Truly, the headwear at Coachella is innovation at its finest.

The horns are an interesting addition.

Body art is common.

This looks fun.

And painted faces.

We're obsessed with this watermelon motif.

Members of the Trash Kan Marchink Band perform at Burning Man in 2016.

Like most festival scenes, floral crowns are everywhere.

This crown is nice and bright.

Girls just love 'em.

That's quite the hat.

Genie hats had their moment.

This guy really leaned into the genie theme.

The rest of this group didn't seem to get the genie hat memo.

Who wore it better?

So cute.

Tutus are also popular.

Anything goes.

For both genders.

This tutu adds some much-needed flair to this outfit.

You're never too old to attend the festival.

This guy channeled Jim Carrey's character in "Ace Ventura: Pet Detective."

The cut-outs on his shirt are funky.

This guy spread the love in a red tutu.

Creepy.

Some tutus are more sinister.

It's truly a festival unlike any other.

This devil really decked out his bike.

But they all look awesome against the vast desert backdrop.

It's unclear how she got the fur to stay on the bike.

Some festival-goers make their bikes look as crazy as their costumes.

He came prepared to avoid the desert dust.

This fur-trimmed unicorn bike was a favorite of ours.

This guy decided to deck his bike out in fur.

We might have nightmares about these.

Masks can be frightening.

This outfit had a masquerade theme.

But also whimsical.

This was a pretty costume.

Some wear wings.

We're not sure what inspired this carrot costume, but we approve.

Others wear vegetables.

These outfits are like a less-PG version of Disney's Zenon.

Groups of friends tend to dress in themes.

Too funny.

Like these guys.

They also nailed the fanny pack theme.

These ladies nailed the pink theme.

Bathing suits and bras were popular.

It's hot, so people wear as little as possible.

You're guaranteed some good tan lines.

The less you're wearing in the desert, the better.

Swimwear is everywhere.

The antlers are awesome.

Some add flair to their swimwear.

Vests as shirts are a thing too.

It's really just a giant costume ball.

This guy knows hot to keep cool.

Water guns seem like a great idea for this festival.

A fanny pack is a great addition to any costume — and it's practical.

The more color, the better.

Her shoes give her quite the boost.

This lady was a rainbow unicorn.

This headdress is so detailed.

In fact, unicorns seem to be a reoccurring theme at Burning Man.

We love her necklace.

The mystical creature has appeared in many a festival-goer's costume.

This couple coordinated their brights.

Who says you can't wear snow boots in the desert?

Others kept it all-white.

Friends or sisters? We can't tell.

Feathers and fringe? Check.

Not all bathing suites were bikinis.

No beach? No problem.

They look like they're having a good time.

This lady was ... hungry?

Literally.

You pick up quite a few friends along the way.

Adorable.

And people of all ages get in the costume spirit.

Is this even a person?

And like everything else at Burning Man — from the bikes to the art — even the costumes light up at night.

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