The slight flare (reminiscent of the 70's) is fitted in the hips and thighs and then gradually flares below the knee. It is especially flattering on curvy figures as it balances out the hip area. Avoid pants that are too tight. A good fitting pant should have a 1" leeway in the thigh area.
The menswear trouser (made popular in the 1940's by Katherine Hepburn) provides a little extra room for those with ample hips and thighs. But make sure they fit well in the rear with not too much extra material in the upper thigh area. If you are petite (under 5'4") avoid pants that are too loose, have too large a flare, or pants with a cuff. Think proportion.
Pair your menswear trousers with feminine, silky blouses (tucked in) and a heeled shoe or boot. With your flares, try sleek simple tops or sweaters, depending on your build, and platforms or a heeled shoes to create a long, lean line. With both looks, you definitely need some form of waist definition.