French Terry vs. Heavyweight French Terry: How to Choose the Right Fleece GSM for Hoodies, Joggers, and Sweatsuit Sets
French terry is the go-to fabric for everyday staples: hoodies, sweatshirts, joggers, tracksuit sets, sweatsuit separates, loungewear, and children's knitwear. The single most important decision when sourcing it is thread construction — two-thread or three-thread build. Lightweight French terry works for transitional-season basics and year-round layering pieces; heavyweight French terry (brushed or loop-back) is the standard for fall/winter production runs. They sit in different price and warmth tiers. This guide breaks down which construction to use for each application and how to avoid costly GSM mistakes.
French Terry vs. Heavyweight French Terry: What's Actually Different
The core difference lies in the number of yarn systems fed during knitting and the resulting fabric weight of the finished fabric.
French terry (loop-back). Knitted on a circular machine using two yarn systems. The first system forms a smooth face; the second creates light loops on the reverse. Finished weight runs 180–230 GSM. It's lightweight and breathable — well suited to lightweight summer pieces and transitional-season garments.
Heavyweight French terry (three-thread). Knitted from three yarn systems. The third yarn lays an additional layer on the back, increasing both fabric weight and heat retention. Finished weight ranges from 240–460 GSM depending on the construction. It's the production standard for fall/winter hoodies, tracksuit sets, and sweatshirts, available in both brushed fleece and loop-back finishes.
The one-sentence version: French terry is your lightweight, all-season workhorse; heavyweight French terry is the dense, winter-ready standard for mass production.
Side-by-Side Comparison
A quick reference to match construction to end use.
Parameter
French terry (2-thread)
Heavyweight French terry — loop-back
Heavyweight French terry — brushed fleece
Yarn systems
2
3
3 + brushing
Fabric weight (GSM)
180–230
240–400
280–460
Reverse side
Fine loops
Dense loops
Brushed pile / nap
Warmth
Low
Medium to high
High
Breathability
High
Medium-high
Medium
Season
Summer, transitional
Spring–autumn, mild winter
Autumn–winter
Print suitability
Excellent — smooth face
Excellent — smooth face
Poor — pile disrupts detail
Shrinkage
3–5%
3–5%
3–5%
Typical wholesale price
Lower
Mid
Mid to upper
Typical retail price per yard
Budget
Mid-range
Mid to premium
French terry leads on weight and price; brushed fleece leads on warmth and versatility for winter ranges. Loop-back heavyweight French terry sits in the middle — ideal for transitional-season production.
Which Fabric for Which Garment
Fabric selection should follow the season and garment type.
Lightweight transitional hoodie for spring and autumn. French terry 200–220 GSM or loop-back heavyweight French terry 240–260 GSM. Works as a mid-layer under a jacket or a standalone piece in mild weather.
Everyday autumn/winter hoodie. Brushed fleece heavyweight French terry 280–320 GSM. The mainstream production standard. Works under outerwear, for everyday casualwear, and for branded merchandise runs.
Heavy winter hoodie for cold-weather and outdoor daily wear. Brushed fleece heavyweight French terry 340–400 GSM, or loop-back construction at 350–400 GSM. Use for cold-weather walks, insulated tracksuit sets, and base-layer thermal builds.
Joggers and sports trousers. Loop-back heavyweight French terry 240–280 GSM for transitional seasons. Brushed fleece heavyweight French terry 280–320 GSM for winter. Slim and tapered cuts benefit from adding 3–5% spandex (elastane).
Full sweatsuit set (hoodie and joggers). Brushed fleece heavyweight French terry 300–320 GSM — 100% cotton or an 80/20 cotton-polyester blend for mass-market runs. Loop-back heavyweight French terry 260–280 GSM for transitional-season sets.
Sweatshirts and open-front cardigans. Winter builds: heavyweight French terry 320–400 GSM, brushed or loop-back. Collarless cardigans are often cut in dense loop-back 350–400 GSM for a clean drape and defined silhouette.
Sweater dresses and longline tunics. Heavyweight French terry 280–320 GSM, brushed or loop-back. Loop-back gives a more structured, refined look; brushed fleece reads warmer and more relaxed — well suited to loungewear and casual daywear.
Long-sleeve base layers and lightweight jumpers for summer and transitional wear. French terry 180–200 GSM, 100% cotton. A thin, light option to wear under light jackets or as a standalone warm-weather layer.
Children's clothing. French terry 200–220 GSM, 100% cotton for kids' hoodies, sets, and sweatshirts. For winter children's sets, use brushed fleece heavyweight French terry 280–300 GSM, 100% cotton.
Loungewear and pyjamas. French terry 180–220 GSM for summer loungewear. Brushed fleece heavyweight French terry 280–300 GSM for winter lounge sets.
Branded merchandise for print. Loop-back heavyweight French terry 280–320 GSM, 100% cotton or 80/20 blend. The smooth, dense face holds sharp print detail wash after wash. For budget mass-market merch, French terry 200 GSM in an 80/20 blend keeps costs down.
How to Match Fleece GSM to Season
Fabric weight is measured in grams per square meter (GSM). It's the primary indicator of which season a finished garment is built for.
180–220 GSM (French terry). Lightweight summer hoodies for cool evenings, home loungewear, kids' summer pieces, and long-sleeve layers worn under outerwear. Warmth comes from the hood, not the fabric weight.
220–260 GSM (lightly brushed French terry or loop-back heavyweight). Versatile spring and autumn weight. Transitional hoodies for daily wear, lightweight tracksuit sets, basic sweatshirts. Comfortable at around 50–60°F (10–15°C).
260–300 GSM (loop-back heavyweight French terry). Cool weather and late autumn. Light winter hoodies worn under a jacket, everyday sets, and open-front cardigans. Clean loop reverse — no pile — so the garment moves without bulk.
280–320 GSM (brushed fleece heavyweight French terry). The mainstream production benchmark. Hoodies and tracksuit sets for everyday autumn–winter wear, standard branded merchandise, and corporate uniform pieces. This is the most widely sourced weight range on the market.
320–400 GSM (brushed fleece or dense loop-back heavyweight French terry). Winter hoodies, warm lounge sets for hard-frost days, insulated sweatshirts, and heavyweight cardigans. Heavier, warmer, slower to dry. Loop-back at 350–400 GSM is the preferred choice when maximum print clarity is required at this weight.
410–460 GSM (heavyweight French terry with bonded Euro-fleece lining). An insulated construction for winter parkas, extreme-cold sweatshirts, and workwear outerwear. Rarely used for standard hoodies — more commonly found as a shell or outer layer.
Fiber Content: What to Look For
Fiber content determines how a garment performs after repeated washing and a full season of wear.
Cotton 65–100%. The higher the cotton content, the softer the hand feel and the better the skin-friendliness. The trade-off: 100% cotton without polyester loses its shape at the knees and elbows faster. Use 100% cotton for children's ranges and premium capsule collections; use 80/20 or 65/35 cotton-polyester blends for branded merchandise and mass-market production.
Polyester 15–35%. Added to control stretch and shape retention. After 20 washes, a blended garment holds its fit; a 100% cotton equivalent will have started to drop and distort.
Spandex (elastane) 3–5%. Optional, used in close-fitting cuts: tapered joggers, leggings, fitted athletic tops. Standard relaxed hoodies and straight-cut joggers don't need it.
What to avoid. Rayon (viscose) above 10% — it sags and drops after washing. Any listing that reads "synthetic content — type unspecified" typically contains up to 60% low-grade polyester that pills within 5–10 washes.
For a full breakdown of spinning technologies — open-end (OE/rotor-spun), carded, combed, and compact combed cotton — and how they affect hand feel and durability, see the guide "French Terry: How to Choose".
How Much Fabric Do You Need Per Garment
Standard roll width for French terry is 175–200 cm (69–79 in). Yardage per unit varies significantly with production volume: individual cutting wastes more fabric, while pattern pieces nest tightly in a batch run, cutting consumption by 20–30% per unit.
Individual/one-off cutting:
Production batch of 10–50 units, single style:
Cuffs, waistbands, and hood facings are cut from 2x2 rib knit (kascorse/rib) at a weight approximately 30–40 GSM heavier than the main body fabric. A single hoodie typically uses 0.2–0.3 m (approx. 0.25 yd) of rib. For a detailed comparison of rib options, see the guide "2x2 Rib vs. 1x1 Rib: Which to Use".
Shrinkage allowance. Add 15% over your calculated yardage for individual one-off cutting; add 5–10% for batch production runs. Knit fabric must always be cut on the grainline — offcuts cannot be worked into seam allowances.
Wholesale vs. Retail Pricing: What to Expect
Retail pricing by the yard. French terry 100% cotton retails at a lower price point, while brushed fleece heavyweight French terry in 100% cotton commands a significantly higher retail price. Loop-back heavyweight French terry sits in the mid range. Exact prices vary by supplier, weight, and fiber content, but the relative tiers are consistent across most markets.
Wholesale pricing. At wholesale, blended (80/20 cotton-polyester) constructions are always cheaper than 100% cotton at the same weight. Compact combed cotton sits at the upper end of the wholesale price range. As a general rule, brushed fleece heavyweight French terry runs 20–30% more per meter than French terry of the same width, and compact combed constructions carry a further premium.
When costing a batch run of 10+ hoodies, brushed fleece heavyweight French terry will come in 25–40% higher per unit than French terry at the same roll width. That premium is justified by seasonality and sell-through: heavyweight French terry moves for roughly eight months of the year (autumn through spring), while lightweight French terry has a narrower selling window of two to three months in summer and late spring.
Recommended Fabrics by End Use
Basic black hoodie or sweatsuit set — layering piece, transitional season, children's wear: French terry 210–220 GSM, 75/25 cotton-polyester, black. A lightweight, versatile weight for everyday styles.
Premium 100% cotton hoodie or sweatshirt — designed for print or embroidery, brand collection builds: heavyweight French terry 310 GSM, 100% carded cotton, loop-back, denim blue. Carded loop-back without brushing gives a clean, dense surface that performs better under print than a blended construction.
Mass-market winter merchandise — print run of 20+ units: heavyweight French terry with brushed fleece, 340 GSM, 65/35 cotton-polyester. Winter weight with a blended composition that holds its shape wash after wash.
Browse the full range in the French Terry category. Separate collections: French terry (loop-back lightweight) and heavyweight French terry. 600+ SKUs with filters by GSM, fiber content, and roll width — available at wholesale pricing.
Common Mistakes When Choosing French Terry
A few recurring errors where substituting one weight for another produces a poor result.
Cutting a winter hoodie in French terry. At 220 GSM without brushing, French terry only works down to around 40°F (5°C) and only as a mid-layer under outerwear. A winter style cut in French terry will feel cold, and the batch ends up on clearance. Use brushed fleece heavyweight French terry at 280+ GSM for anything sold as a winter garment.
Cutting a summer hoodie in heavy brushed fleece. Brushed fleece heavyweight French terry at 320 GSM becomes unbearably hot above around 65°F (18°C). For summer, use French terry at 180–220 GSM or loop-back heavyweight French terry at 240 GSM.
Screen printing on the brushed face of brushed fleece. Ink sits on top of the pile and the reverse-side loop pattern reads through the print. For sharp, detail-rich print work, use loop-back heavyweight French terry or standard French terry — both have a smooth, printable face.
Mismatching the rib knit weight to the body fabric. The rib cuff and waistband should be 30–40 GSM heavier than the main body. French terry at 200 GSM pairs with 2x2 rib at 250–280 GSM or 1x1 rib at 200–220 GSM. Brushed fleece heavyweight French terry at 320 GSM pairs with 2x2 rib at 360 GSM. Full guidance in the guide "2x2 Rib vs. 1x1 Rib: Which to Use".
Ordering exactly to calculated yardage with no allowance. Knit fabric must be cut on the grainline — offcuts cannot be incorporated into seams. Always add 5–10% for batch production and 15% for individual one-off cutting.
Buying low-cost heavyweight French terry with a high polyester content (50%+). A hoodie built from this fabric feels synthetic against the skin, doesn't breathe well, and becomes uncomfortably warm indoors. For an everyday wear hoodie, insist on a minimum of 65% cotton in the fiber content.
Frequently Asked Questions
Brushed fleece heavyweight French terry at 280–300 GSM in an 80/20 cotton-polyester blend. This is the working standard for everyday autumn–winter wear: it holds its shape, takes print well, and sits at an accessible wholesale price point. For a summer version of the same style, use French terry at 200–220 GSM.
Not recommended. French terry only works down to around 40°F (5°C) and only as a layering piece. For a standalone winter hoodie without outerwear over it, use brushed fleece heavyweight French terry at 280–320 GSM.
Fiber content and GSM can be identical — the difference is in the reverse side. Brushed fleece has a raised nap on the back that traps warmth like a thin fleece lining. Loop-back retains the smooth loop structure, offers slightly less warmth, but lies flatter against the body and moves without bunching or riding up.
A basic hooded hoodie needs 1.4–1.6 m (1.5–1.75 yd) for one-off cutting, or 1.0–1.2 m (1.1–1.3 yd) per unit in a batch of 10+. Oversized cuts run higher: approximately 1.4–1.6 m (1.5–1.75 yd) whether cut individually or in a batch. Full yardage tables are in the guide "French Terry: How to Choose."
French terry 200–220 GSM, 100% cotton for transitional seasons. Brushed fleece heavyweight French terry 280–300 GSM, 100% cotton for winter. Specify combed or compact combed cotton spinning for the best skin-friendliness and hypoallergenic performance.
280–320 GSM with brushed fleece, in a 65/35 or 80/20 cotton-polyester blend. This is the proven standard for logo print merchandise: the smooth face holds print definition wash after wash, and the blended composition keeps the garment in shape across a long production run. It's also the most cost-effective weight-to-warmth ratio for wholesale merch.
Not recommended. Different GSM values produce different shrinkage rates — heavyweight French terry shrinks slightly more than standard French terry, and the differential causes seams to twist and pucker after the first wash. Use a consistent weight throughout the garment body, and switch to the appropriate rib knit only at the cuffs and waistband.
French terry comes in roughly 20–30% lower at wholesale. On a batch of ten hoodies, the saving versus heavyweight French terry of the same roll width is meaningful — enough to noticeably affect your cost-per-unit. Use French terry for budget transitional-season merchandise; use brushed fleece heavyweight French terry as your primary winter fabric.
A quality 100% cotton heavyweight French terry at 300 GSM in compact combed cotton will hold up through 40–60 washes before showing visible wear. An 80/20 cotton-polyester blend at the same weight typically lasts 80–100 washes. Standard French terry at 200 GSM wears slightly faster — expect 30–50 washes.
For international buyers, the most reliable sources are specialist textile wholesalers carrying Turkish and Uzbek mill production for premium-quality runs, and established knit fabric distributors for mid-market blends. Minimum order quantities typically start at one full roll — approximately 50–80 m (55–88 yd) per colorway.