Straight-leg jeans without a distressed finish

Start with the side view

The phrase straight leg does not describe a single silhouette. One pair may be close through the thigh and almost unchanged below the knee; another may have substantially more room all the way down. Look from the side as well as the front. The fabric should have somewhere to go when you sit, rather than pulling across the seat and collecting sharply behind the knees.

An undistressed finish makes those lines easier to see because there are fewer pale patches, tears or deliberate abrasions competing for attention. This does not make the jeans inherently more formal. Pocket shape, seams, fabric stiffness and the cut still matter. Think of the plain surface as a starting point, not a guarantee that the jeans will suit every occasion.

Choose the hem for your usual shoes

Try the jeans with the shoes you expect to wear most. A fuller trainer may support a longer hem than a slim loafer. If the denim forms several folds above the shoe, decide whether you enjoy that volume or simply accepted the length available in the shop. Shortening can change the look, so discuss the intended result before altering.

A turn-up is another option, but it introduces a visible horizontal band and the lighter reverse of the fabric. One broad turn-up and two narrow folds do not look the same. Try both without pulling the leg artificially tight. If you dislike the contrast, an altered hem may be a cleaner answer than continually refolding it.

Let them earn a place in rotation

Dark indigo works with a grey sweatshirt, an Oxford shirt or an unstructured jacket. Mid-blue can soften a dark knit. Rather than buying several similar pairs immediately, wear one with the tops you already own and note where it fails. The missing piece might be a different rise or length, not another shade of blue.

Read the care label and any warnings about colour transfer before pairing new dark denim with pale upholstery, light shoes or a white bag. Treat the maker's instructions as specific to the garment. A universal rule about never washing jeans is less useful than responding to actual dirt, odour and the requirements of the fabric you bought.