Unlined( unconstructed) linen or cotton jacket is an essential for a hot summer weather. You'll feel the jacket light on you, that will make you comfortable. Remember is all about the comfort.
Another essential for spring and summer is light weight linen or cotton(khaki) pant. Why not a lighter color. Try a white pant.
Also lighter color shirts are part of spring and summer's key items. On a very hot summer evening, a comfortable light weight shirt without a jacket is what you want.
Striped sweaters can be worn with or without a jacket, a great spring/summer look. Try the cotton or the silk ones. Oh! please grab your spring scarf.
Duffel bags(not the ones Jay-Z sings about) are essential for those of you who like to go away every weekend. Absolutely necessary for going to the Hamptons.
Loafers(with or without laces) are absolutely essential for the season. Try to wear them without socks. I think women find it very sexy. You may get lucky.
Belts don't have to be basic anymore(black/brown) i find them boring. Spice it up, get yourself some colourful belt.
Time for the beach, grab your sexy swimsuit.
A single button black jacket with black trousers. Always black shoes when wearing a black jacket. Narrow lapel jacket is better with a skinny tie or a tie with a narrower width. 
A peak lapel pinstripe navy suit, with a light blue shirt and a gold paisley tie. Good for a classic/elegant business wear. Please make sure you have your New York times papers with you.
A light grey two buttons notch lapel suit, can be worn for your formal or cocktail event. With white shirt and black shoes. 
This one here is not a runway pose, is just a cool look, i call it your sexy look, feeling sexy, wanting to impress your date.
A black velvet jacket is so sexy, i love it, i usually get picked up for wearing one, wear it with a pair of jeans or a nice black trouser. Definitely with black shoes.
