Fit matters more than fabric quality when it comes to how a t-shirt or hoodie actually looks once it’s on. Here’s what to actually pay attention to, beyond just picking a size letter.

Start With Shoulder Seams, Not Chest Width

Most people size a t-shirt based on chest measurement alone, but shoulder seam placement is what makes or breaks the fit. On a well-fitted tee, the shoulder seam sits right at the edge of your shoulder — not drooping down your arm (too big) and not pulling inward toward your neck (too small). If you’re between two sizes, check the shoulder seam measurement in the size chart rather than defaulting to "chest fits, good enough."

Sleeve Length Changes the Whole Look

A slightly cropped sleeve (ending mid-bicep) reads as more fitted and modern. A longer sleeve that reaches closer to the elbow reads more relaxed or vintage-inspired. Neither is "correct" — but mismatching sleeve style with the rest of the shirt’s cut (e.g., a boxy, oversized body with a very short, tight sleeve) can look unintentional rather than deliberate. If you’re going for an oversized fit, let the sleeve length follow — slightly longer, not clipped short.

Hoodies: Consider What’s Underneath It

Hoodies get worn over other layers more often than tees do, so it’s worth trying yours on with a t-shirt underneath before deciding on size — a hoodie that fits perfectly on bare skin can feel tight the moment you add a base layer. If you regularly layer, size up slightly, or check whether the hoodie is described as a "regular" vs. "relaxed" fit — the difference is usually 2–3 inches of chest room, which is enough to matter once you add another layer.

Fabric Weight Affects How Fit "Reads"

A lightweight, thin cotton tee will drape and cling more, making a tighter fit look more obviously fitted (or more obviously too small, if it’s the wrong size). A heavier cotton or fleece hoodie holds its shape and camouflages minor sizing issues better. If you’re unsure about sizing and choosing between a light or heavy fabric option, the heavier fabric gives you a bit more margin for error.

Length Matters More Than People Expect

A t-shirt that’s too long relative to your torso will bunch when you sit, and one that’s too short will ride up and show your stomach when you raise your arms. As a rough guide: the hem should hit somewhere around the top of your hip bone when standing normally. For hoodies, slightly longer is generally fine since they’re often worn more loosely, but check that the hem doesn’t sit so low it looks like a dress-length hoodie unless that’s the specific style you’re going for.

When in Doubt, Check Garment Measurements, Not Just S/M/L

Sizing varies significantly between brands and even between different cuts from the same brand. A garment’s actual measured chest width and length (usually listed in inches or centimeters on the product page) is a much more reliable guide than the S/M/L label alone, especially if you’ve been sized differently by different brands before.