Straight-leg trousers are cooperative, but they are not indifferent. The same pair can look crisp with loafers, relaxed with sneakers or elongated with a pointed heel. The hem decides which shoe relationship is available.
Sort the trousers by where they stop
An ankle-length pair exposes the whole shoe. A full-length pair hides much of the upper and lets the toe shape do more work. A trouser that breaks on the foot introduces softness and needs enough shoe underneath to keep the fabric off the floor.
If your pair is intentionally cropped, the detailed ankle-gap checks in our cropped-trouser shoe guide will help. For full-length trousers, stand in the actual shoes before judging the hem.

Loafers make the line feel grounded
A classic loafer gives straight trousers a defined edge without adding height. Slim loafers suit lighter fabric and narrower openings; a lug sole can support wool, twill and a slightly wider leg. Let a small section of instep or sock show with cropped hems. With longer trousers, make sure the back does not catch under the heel.
Ballet flats and pointed flats lighten the finish
Ballet flats work because their low profile leaves the trouser line uninterrupted. A rounded toe feels softer; a point visually extends the leg, particularly when only the toe appears below a long hem. Match the shoe to skin tone for a low-contrast effect or repeat the belt color for a more graphic frame. The belt itself should fit the loops and fabric weight, as explained in choosing belt width.

Sneakers need a deliberate amount of sole
Choose a clean, relatively low sneaker for a fine or tailored trouser. A chunkier sole can work with a roomier straight leg, but it should look proportional from the side. If the hem lands on top of the shoe and forms several folds, either shorten the trouser or choose a lower shoe. Calling the folds “relaxed” will not stop you stepping on them.
Ankle boots must clear the opening
The cleanest boot has a shaft narrow enough to disappear under the trouser. If the shaft catches, the hem will perch and release with every step. A pointed or almond toe remains visible and can make a heavier cold-weather fabric feel less blocky.

Low heels change posture more than mood
A kitten heel, block heel or slingback raises the hem and reveals more of the toe. This is useful when trousers are a fraction too long for flats. It is not a substitute for tailoring when the hem still drags.
Straight trousers also pair easily with shorter jackets because neither piece overwhelms the other. If your jacket is wide or long, borrow the volume-balancing questions from our wide-leg pants jacket guide.

Photograph the outfit from the side as well as the front. The side view reveals the trapped boot shaft, collapsed sneaker heel and trouser break that a flattering front-facing mirror can politely ignore.
Frequently asked questions
Can I wear sneakers with straight-leg trousers?
Yes. A clean low-profile sneaker suits tailored fabric, while a slightly chunkier shoe can balance a roomier leg. Keep the hem from pooling.
What boots work under straight trousers?
Choose an ankle boot with a shaft narrow enough to clear the trouser opening and a toe shape that remains visible.