A grey knit oversized sweater and white skinny jeans are a good pairing to add to your current casual arsenal. Complement this look with a pair of black suede over the knee boots for an instant style fix.
Black Suede Over The Knee Boots with White Skinny Jeans Outfits
You can look chic without exerting much effort in a white and navy horizontal striped cardigan and white skinny jeans. As for footwear, finish with black suede over the knee boots.