Spider Hoodie Fabric Guide: Fleece vs. French Terry vs. Cotton

Not every hoodie labeled “fleece” is actually warm, and not every “premium cotton” hoodie breathes the way it should. The fabric underneath the graphic is what decides whether a hoodie holds up through a cold commute or gets left in the closet by October. Here’s what’s actually different between fleece, French terry, and cotton blends, and how to tell which one is inside a spider hoodie before you buy.

What’s Actually Inside a Hoodie

Almost every hoodie starts as a knit fabric, brushed on the inside to raise a soft pile. That brushed layer is what traps air against your skin and makes a hoodie feel warmer than a T-shirt of the same weight. The fabric name on a product page — fleece, French terry, cotton blend — is really describing how tight that knit is, how heavy it is, and how much brushing was done to the inside face. Those three things together decide warmth, drape, and how the hoodie wears over time.

Fleece: The Warmest, Coziest Option

Fleece is a tighter knit with a fuzzy, napped interior, and it’s the warmest fabric you’ll find in streetwear hoodies. The dense brushed fibers create tiny air pockets that hold body heat, which is why fleece-heavy hoodies feel noticeably warmer than a plain cotton crewneck even at the same thickness. It’s also heavier and less breathable, so it’s built for cooler weather rather than layering under a jacket in summer heat.

Heavier fleece, usually somewhere around 380–420 GSM (grams per square meter), is the standard for a proper winter hoodie. If a product description mentions “heavyweight fleece” or “brushed interior,” that’s the fabric doing the work — and it’s what you want for late fall through winter.

French Terry: Breathable With a Cleaner Look

French terry has small uncut loops on the inside instead of a brushed pile, giving it a flatter texture and noticeably more breathability. It wears cooler than fleece, has a lighter drape, and tends to hold its shape well through repeated washes. That makes it a solid pick for transitional weather — early fall, spring, or mild winter days — when a full fleece hoodie would be overkill.

It’s also a common choice for lighter pieces, so if you’re comparing a hoodie against one of the lighter sweatshirt options in the same collection, French terry is often the fabric bridging the two.

Cotton Blends: Softness Over Warmth

A cotton or cotton-poly blend prioritizes softness and everyday comfort over insulation. It’s the lightest of the three, breathes the most, and is usually the least expensive to produce, which is why it shows up in budget streetwear. On its own, cotton isn’t warm — if you want real warmth, a quality fleece is significantly better at trapping heat than cotton at a comparable weight. Cotton blends make the most sense for indoor wear, warmer climates, or as an under-layer beneath a heavier piece.

Matching Fabric to the Season

With temperatures starting to drop into fall, this is exactly the point in the year to think about fabric weight rather than just color or graphic. A rough guide that holds up in practice:

• Late summer / early fall: lighter French terry or a cotton blend, worn on its own.
• Mid-fall: mid-weight French terry, or fleece worn open over a T-shirt during the day.
• Winter: heavyweight brushed fleece, ideally a full-zip fleece hoodie you can layer under a coat without overheating indoors.

Zip-up styles have an edge going into colder months for one practical reason: you can vent them. A pullover in heavy fleece is either on or off, but a full-zip lets you regulate temperature throughout the day without swapping pieces.

How to Judge Fabric Quality Before You Buy

You can’t feel the fabric through a product photo, but a few details in the listing tell you a lot:

• GSM or weight mentioned: higher GSM generally means a heavier, warmer, more durable knit.
• “Brushed” or “napped” interior: a signal it’s fleece, not a thin cotton knit dressed up as one.
• Fabric blend percentage: a higher cotton percentage in a blend usually means softer but less structured; more polyester tends to hold shape and resist pilling longer.

If none of that is listed, it’s worth checking reviews or reaching out before ordering, especially if you’re buying for a specific climate rather than just the look.

Keeping Any Fabric Looking Right

Fabric choice only pays off if the hoodie is cared for properly — fleece and cotton blends both lose their warmth and shape when washed in hot water or dried on high heat. Our wash and care guide covers the specifics, and if you’re unsure how a particular fabric weight will actually fit, the sizing guide is worth checking too, since heavier fleece can sit slightly differently than a lighter French terry cut.

FAQ: Hoodie Fabric Guide

Is fleece or French terry better for a hoodie?
It depends on the goal. Fleece is warmer and cozier, making it better for cold weather. French terry is more breathable and lighter, making it better for mild weather or layering.

Is cotton or fleece warmer?
Fleece is warmer. A quality fleece traps significantly more body heat than cotton at a similar weight, since the brushed interior creates insulating air pockets that plain cotton doesn’t have.

What GSM should I look for in a winter hoodie?
Somewhere around 380–420 GSM is typical for a heavyweight winter fleece hoodie. Lighter pieces for warmer weather often sit well below that.

Does a full-zip hoodie keep you warmer than a pullover?
Not inherently — the fabric matters more than the closure. But a full-zip gives you more control over warmth throughout the day since you can open or close it as temperatures change.

Will a cotton blend hoodie work for winter?
On its own, not really. A lightweight cotton blend is better suited as an under-layer beneath a heavier fleece piece or jacket once temperatures drop.