For an outfit that's very straightforward but can be modified in a great deal of different ways, try teaming a grey crew-neck sweater with white skinny jeans. And if you want to immediately perk up this ensemble with one single piece, why not introduce over the knee boots to the mix?
Chic yet practical, this look is assembled from a grey crew-neck sweater and black skinny jeans. For a trendy hi/low mix, complete your look with over the knee boots.
Combining a grey crew-neck sweater and navy skinny jeans will prove your sartorial savvy even on dress-down days. With shoes, you could take a more elegant route with over the knee boots.