Being a hipster isn't an easy thing, as you have to be dressed up casual, yet elegant. The first thing you have to do is to reject mainstream clothing. You have to look for “unconventional” fashion pieces. No matter if it's a jacket, jeans or a tee, but it has to include at least one of the following things: acid washes, cut-outs, oversize, leather, abstract, fringed, cropped, ripped, faded, suede, lace-up, patchwork, "boyfriend" style or vintage.
The easiness is the key. Go for a simple V-neck in black color and style it with light grey cardigan, black skinnies and muted camel suede boots.