Quick Answer: Selvedge or chainstitch hems, weight (measured in oz, generally 12oz+ for durability), bar tacks at stress points, consistent stitching density, and a fabric that holds shape when stretched are the 5 details that reliably signal quality denim, regardless of brand or price point.

Denim shopping often defaults to trusting the price tag or brand name. These 5 checkable details are more reliable.

Look 1: Hem and Seam Construction

Chainstitch or selvedge hems create a slight rippled edge that’s a hallmark of quality construction, as opposed to a flat, machine-overlocked hem common on lower-cost denim.

Checking the inside seams for clean, even stitching without loose threads or puckering is a fast way to gauge overall construction quality in under a minute.

Look 2: Fabric Weight

Denim weight, measured in ounces per square yard, correlates with durability — 12oz and above generally holds up to regular wear better than lighter weights, which are more prone to thinning and tearing at stress points over time.

Weight isn’t listed on every tag, but the fabric feeling substantial rather than thin when held up is a reasonable hands-on proxy when the number isn’t available.

Look 3: Bar Tacks at Stress Points

Reinforced stitching (bar tacks) at pocket corners, the fly, and belt loops prevents these high-stress points from tearing first, which is often where lower-quality denim fails within the first year of regular wear.

Checking these specific points for visible reinforcement stitching (usually a small dense square or triangle of thread) is a quick quality check most shoppers skip entirely.

Look 4: Stitching Density

A higher stitch count per inch generally means a stronger, more durable seam — visually, this looks like tighter, more closely spaced stitching rather than loose, widely spaced thread.

Comparing stitching density between two pairs side by side (even in a fitting room) makes this difference fairly easy to spot once you know to look for it.

Look 5: How the Fabric Recovers After Stretching

Quality denim with the right stretch-to-recovery ratio should return close to its original shape after being stretched, rather than staying visibly baggy at the knees and seat.

A quick in-store test: stretch a section of fabric between your hands and watch how much it springs back — denim that stays noticeably stretched out is more likely to bag out at the knees within weeks of regular wear.

FAQ: Denim Quality Checks, Answered

Does raw (unwashed) denim indicate higher quality than pre-washed?

Not necessarily — raw denim indicates a specific finishing choice, not inherently better construction; the 5 details above apply regardless of wash treatment.

Is stretch denim automatically lower quality than 100% cotton?

No — a well-engineered stretch blend with good recovery can outlast a poorly constructed 100% cotton pair; recovery quality matters more than fiber content alone.

How much of a difference does price actually make for quality?

Price correlates loosely with quality at the extremes, but checking these specific construction details is more reliable than price alone across the middle range of the market.

TL;DR:

• Chainstitch/selvedge hems and clean seam construction signal quality over flat overlocked hems
• 12oz+ fabric weight generally holds up better to regular wear
• Bar tacks at stress points (pockets, fly, belt loops) prevent early tearing
• Fabric that springs back after stretching resists bagging out at the knees

Next denim shopping trip, check these 5 details in the fitting room before checking the price tag.