What to wear in Vegas in February?

[QforCucumber]

Having never been before I'm at a complete loss, does anyone have any ideas or tips on what to take? What the weather is like?
Comfy clothes? Dress up?
Best places for shopping?

We are there for 5 days, getting married on day 3.

Comfy shoes. We walked about 15 miles in one day.
We were there in January and I wore jeans, leather jacket etc. It wasn't particularly cold.
There is a massive mix of people there. I've seen people in wedding dresses, people going to ice hockey matches, people going clubbing...
Honestly... no one cares.

Oh that's a lot of walking, thank you!

I'll make sure to leave out the sundresses and sandals.

I went in September so can't comment on weather
But comfy shoes! Dress up for the evening (if you want to!), we did a lot of shows etc.

Shopping wise, the main hotel shops won't be cheaper than the UK (in fact a friend spent £600 more on a watch than what it would have cost here), but there's a good outlet centre if you want to go shopping (things like Levi jeans are much cheaper)

We went at the beginning of February last year. The temperatures averaged 20-25 degrees while we were there. It was warm during the day but cooler at night. I wore vest and jeans with a shirt or hoodie over the top. You'll definitely need comfortable shoes.

Americans dress casually. Every single man wears chino shorts and a polo shirt.

Dress up or dress right down, you'll be right at home, even in the posher venues. It's a bit 'anything goes' really. The shopping is fab anyway so I'd pack light then shop as you go!

No white Levis though, I'm strict on that.