You’ll want to avoid accentuating your thin legs with a slim-fitting jean. Instead, opt for a classic straight fit that will add some volume. A medium wash with whiskers (the distress lines around the hip area) will help give the illusion of a wider leg (it has a similar effect that a horizontal striped tee has). Express’ Classic Fit Straight Leg Kingston Jean ($88) is the perfect pairing for any look.
Have enough denim? Opt for a pair of neutral Chinos ($29.95) like H&M’s in Camel. They’re just as (if not more) comfortable as denim and are a great alternative to slacks if your office isn’t casual enough for jeans.