I dunno, its like a strange combination of retro militarism and a like of aerial fashion.
To be fair, I just like retro things in general. Not quite steampunk, but retro fashion and items. Pocket watches, old six-shooter pistols, suspenders. Retro fashion is kewl in so many ways.
Take for example Amelia Earhart - feminist icon and aviator.
She looks absolutely dashing in her jacket. And don't forget posing next to the plane. Huzzah!
Thus a website like landingzone.com is great if you're looking for a dashing looking jacket and love that retro adventurous feel. The site has a variety of different styles of aviator jackets and also a guide that helps you pick the jacket that is the right size for you.
Now for women there is actually a lot more variety of aviator jackets available. Many different styles to choose from. For example the one below is a crinkle cut - which is designed to look weathered. (I bought a backpack once which had the same effect. Everyone was always asking if its dirty and why I don't clean it and I have to explain that is the design.)
And then there is the extra furry designs. Extra faux fur around the neck to make the person feel like they're wearing a fur coat instead of a bomber jacket.
Some jackets will also have more of a motorcycle feel to them too. I think its all the black and the slim fit.
Now of course, how is an aviator jacket different from any other jacket or coat you might purchase?
Well lets see... There is:
Trench Coats - Also retro, great if you like the Maltese Falcon and film noir. Comes with buttons and a built-in belt.
Chesterfield - Like a trench coat, but with no belt. Uses buttons instead. Looks rather boring.
Duffel Coat - Usually comes with a hood and funky buttons. Reminds me of the new Arrow tv show for some reason, even though Green Arrow's hood and jacket are pretty different.
Polo Jacket - Also like the trench coat, and also uses buttons. TWO rows of buttons. Again, it looks rather boring.
Parka - Really warm, but really only looks right if you live in Alaska or northern Canada.
Pea Coat - A design originally worn by sailors. Fits snugly.
Wrap Coat - More like a trench coat, but with zero buttons at all.
Military Trench Coat - Shorter than the standard trench coat, and has lots of buttons like a Pea Coat.
Cape Coat - Really only looks good on women. It ends up looking a bit like a poncho.
Poncho - Ponchos rock!
Toggle Coat - A bit like the Duffel coat because of the funky buttons, but not made of duffel fabric.
So there you go!
Feel free to contrast and compare, but lets be fair: Very few jackets are as kewl looking as aviator jackets.