Hoodie Fabric Weights Explained: The Complete GSM Guide (280–480 GSM)

GSM is the single most important spec on a hoodie tech pack — and the one most new brand founders get wrong. Order too light and your hoodie feels cheap on arrival, no matter how good the print is. Order too heavy and you blow your margin and price yourself out of the market.

This is the reference guide we wish every brand had before sending us their first hoodie tech pack. It covers exactly what GSM means, how each weight band actually feels in hand, the cost trade-offs, and how to choose the right weight for your specific product and market.

Quick definition: GSM = grams per square metre. It measures the weight of the fabric, not its thickness. A higher GSM means more yarn per square metre — generally a denser, warmer, more premium-feeling fabric.

The Hoodie GSM Reference Table

This is the table to bookmark. Every weight band below is one we regularly produce, with the fabric feel and the market it suits.

GSM	Feel in hand	Best for	Typical retail tier
240–280 GSM	Light, soft, drapey	Spring/summer hoodies, athleisure, layering	Budget – mid
300–320 GSM	Mid-weight, everyday standard	Year-round basics, promo, corporate	Mid
340–380 GSM	Substantial, structured	Core streetwear, DTC hero products	Mid – premium
400–420 GSM	Heavyweight, premium hand	Premium streetwear, "heavyweight" drops	Premium
450–480 GSM	Ultra-heavy, boxy structure	Luxury basics, cold-climate, statement pieces	Top tier

The sweet spot for most streetwear and DTC brands is 380–420 GSM. It reads as "premium" to customers, holds a structured silhouette, takes print and embroidery beautifully, and still ships at a reasonable freight cost. If you're building a brand and unsure, start here.

What Each Weight Band Actually Feels Like

Numbers on a tech pack don't tell you how a garment feels. Here's the honest breakdown.

240–280 GSM — Lightweight

Soft and drapey, closer to a heavy t-shirt than a "real" hoodie. Great for warm climates, summer collections, and athleisure where breathability matters. The downside: customers who associate hoodies with weight and warmth can perceive this as thin or cheap. Use it deliberately, not by accident.

300–320 GSM — Standard Mid-weight

The default for promotional, corporate, and entry-level retail hoodies. Comfortable year-round in temperate climates. This is what most blank-garment giants ship by default. Perfectly serviceable — but it won't make your brand feel special on its own.

340–380 GSM — The Brand-Builder

Where a hoodie starts to feel like a considered product. Enough weight to drape well and hold a shape, without being hot or stiff. This band is the workhorse for DTC brands that want quality customers can feel but need to keep COGS controlled.

400–420 GSM — Premium Heavyweight

The "heavyweight hoodie" customers pay a premium for. Structured, warm, and substantial — it hangs with a clean line and makes embroidery and puff print look expensive. Nearly every premium streetwear label lives here. The trade-off is higher fabric cost and freight weight.

450–480 GSM — Ultra-Heavyweight

A statement. Boxy, rigid, almost outerwear-like. Reserved for luxury basics and cold-climate drops where the weight is the selling point. Expensive to make and ship, and not comfortable in warm weather — but unbeatable for perceived value when that's your positioning.

GSM Is Only Half the Story: Construction

Two hoodies at the same GSM can feel completely different depending on the fleece construction. Always specify both.

French Terry — Loop-back knit: smooth face, looped interior (unbrushed). Lighter, more breathable, more drapey. Common at 280–360 GSM. Ideal for transitional-season hoodies, cropped styles, and joggers.

Brushed-Back Fleece — The interior loops are brushed into a soft, fuzzy nap. Warmer and softer against the skin. The standard for classic pullover hoodies, usually 320–480 GSM.

Loopback (unbrushed) Fleece — Raw loop interior, no brushing. More textured and casual, slightly less warm. Popular in elevated basics where the interior loop look is intentional.

Sherpa-Lined — Fleece face with a sherpa interior for maximum warmth. The GSM rating refers to the face fabric; the sherpa adds significant warmth and cost on top.

Yarn Content and How It Changes the Feel

Blend	Character	Notes
100% Cotton	Natural, heavier hand, matte surface	Best print/dye result; less shape recovery
80/20 Cotton/Poly	Smoother, better shape retention	The most popular all-rounder
70/30 Cotton/Poly	Budget-friendly, smooth	Common in promo and entry retail
100% Organic Cotton	Premium, sustainable (GOTS)	Higher cost, strong brand story
Recycled Fleece (rPET)	Performance + sustainability angle	Growing fast in DTC

A 400 GSM 100% cotton fleece feels weightier and more matte; the same weight in an 80/20 blend feels a touch smoother and recovers its shape better after washing. Neither is "better" — it depends on your brand.

How GSM Affects Your Cost and Margin

Fabric is the largest single input in a hoodie's cost, and it scales almost linearly with GSM. Moving from 320 GSM to 420 GSM adds roughly 30% more fabric by weight — which shows up in both the unit cost and the freight cost (you're literally shipping more grams per piece).

A practical way to think about it:

• Going up one weight band typically adds $1.50–$3.00 to the unit cost depending on blend and order size.
• That same weight increase often lets you raise retail by $10–$20 because customers feel the difference instantly.

In other words, weight is one of the cheapest ways to increase perceived value — as long as you don't overshoot your market. A $45 everyday hoodie doesn't need to be 480 GSM; a $110 premium drop probably should be 420+.

How to Choose the Right Weight: A Decision Shortcut

1. Warm climate or athleisure? → 280–320 GSM French terry.
2. Everyday DTC hoodie, balanced cost and quality? → 340–380 GSM brushed fleece.
3. Premium streetwear, weight is part of the pitch? → 400–420 GSM.
4. Luxury / statement / cold climate? → 450–480 GSM.

When in doubt, order a fabric sample (lap dip) in two adjacent weights and feel them yourself. A reputable manufacturer will send physical fabric swatches before you commit to bulk. Specs on paper are no substitute for the hand-feel test.

A Note on GSM Tolerance

Knitted fleece has a natural tolerance, usually ±5%. A "400 GSM" fabric may measure 380–420 GSM across a roll, and that's normal and acceptable in the industry. If a supplier promises an exact GSM with zero tolerance, treat that as a red flag — it isn't how knit fabric works. What matters is consistency batch-to-batch, which is a function of QC, not a promise on paper.

Get the Right Weight, Made Right

At Potato Apparel we stock and source hoodie fleece across the full 280–480 GSM range in French terry, brushed fleece, and loopback constructions — with custom blends and recycled options available. We send physical fabric swatches before bulk, so you confirm the hand-feel yourself, and every order ships with an AQL 2.5 inspection report.

If you're ready to spec your hoodie, start here:

• Custom Hoodie Manufacturer — our full hoodie manufacturing capabilities, MOQ, and decoration options.
• Custom Sweatshirt Manufacturer — crew-neck and pullover sweatshirts in the same weight range.
• Custom Joggers & Sweatpants Manufacturer — match your hoodie to a tracksuit set in the same fleece.

Want help choosing a weight for your specific product and price point? Get in touch with your design and target retail price, and we'll recommend a fabric and send swatches.