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Slim, straight or tapered: which cut fits you
"Slim" and "straight" describe the shape of the leg, not whether it fits you. Match the cut to your build and half the returns disappear.
The vocabulary, quickly
Skinny clings the whole way down. Slim is fitted through the thigh and tapers to a narrow ankle. Straight keeps the same width from knee to hem. Tapered is roomy at the top and narrows below the knee. Relaxed and loose add room everywhere; bootcut widens slightly below the knee. These are leg shapes — a slim and a straight can share a waist size and feel completely different on your legs.
Where cuts actually pass or fail: thigh and seat
If you have muscular thighs or a fuller seat, a slim or skinny cut that fits your waist will pull across the thigh — the waistband fits but the legs don't. A straight or tapered cut with the same waist gives the thigh room while still looking deliberate. If you are lean through the leg, straight can read as baggy and slim will look sharper.
This is exactly where a waist-only label misleads you: two people with a 32-inch waist and very different legs need different cuts, not different sizes.
Rise: the number nobody mentions
Rise is the distance from crotch seam to waistband — it decides where the jeans sit and how long your torso looks. Low rise sits below the hip, mid rise around it, high rise at the natural waist. A cut you "don't like" is often just the wrong rise: the same slim leg on a higher rise can go from uncomfortable to your favourite pair.
Fabric and stretch change everything
A few per cent of elastane widens the range of bodies a given cut will fit, and softens the penalty for guessing wrong. Rigid, 100% cotton denim is less forgiving and will hold whatever shape it was cut to. When you read fit feedback, weight it by fabric — a rigid slim and a stretch slim are not the same garment.