500 GSM Hoodie Manufacturer: Ultra Heavyweight Fleece Specs

500 gsm hoodie manufacturer programs build ultra heavyweight hoodies from 480-520 GSM cotton fleece, usually brushed or loopback, with heavy rib and double-layer hoods. Plan 1-2 fit samples, 4-6% length shrinkage allowance, 1.0-1.3 kg finished weight, 10-15 days for samples and 35-50 days for bulk, with MOQ depending on style and fabric.

The 500 GSM hoodie is the top end of the heavyweight trend. It feels dense, holds its shape like outerwear and signals premium quality as soon as a customer picks it up. That weight comes with production challenges. The fabric is thick and stiff, standard sewing settings struggle, rib must be heavier to match, and shrinkage needs careful control because there is more cotton to move. This guide explains what a 500 gsm hoodie manufacturer needs to get right, how the fabric differs from lighter fleece, and how to plan sampling and bulk.

What is a 500 gsm hoodie manufacturer?

A 500 gsm hoodie manufacturer is a factory that knits or sources cotton fleece weighing about 480-520 grams per square metre and sews it into ultra heavyweight hoodies with a boxy, structured silhouette. The fabric is roughly 25-40% heavier than standard 350-400 GSM hoodie fleece, so it needs adjusted patterns, stronger seams and heavier trims. A finished size L typically weighs 1.0-1.3 kg.

What makes 500 GSM fleece different?

Fleece at about 480-520 GSM is usually knitted as a heavy three-thread fleece or a dense loopback terry with thicker yarns. Compared with standard hoodie fleece:

• Thickness and stiffness. It drapes less and gives a boxy, structured silhouette.
• Warmth. It works as a light jacket in cool weather, which suits fall and winter drops.
• Weight. A finished hoodie often weighs 1.0-1.3 kg, which affects shipping cost.
• Surface. Brushed versions feel soft inside; unbrushed loopback feels drier and more vintage.

Not every mill can knit this weight with stable quality, so ask for a GSM report and shrinkage test from the actual fabric lot. Our hoodie fleece GSM guide compares weights from midweight to ultra heavyweight.

Building an ultra heavyweight hoodie? Weavnora develops 400-500 GSM fleece hoodies with patterns adjusted for thick fabric and tests shrinkage on every sample. See our heavyweight hoodies page for the base styles and fabrics we work with, then request a quote with your style, fabric and quantities. MOQ depends on style and fabric, so we confirm it in your quote.

How does construction change at 500 GSM?

Thick fleece changes how the hoodie must be cut and sewn:

1. Pattern. Extra ease in the chest and armhole stops the hoodie feeling restrictive, and a dropped shoulder suits the drape.
2. Seams. Overlock seams with heavier thread, adjusted differential feed and sometimes flatlock or coverstitch reinforcement keep seams flat.
3. Rib. Cuffs and hem need heavy 2x2 or 1x1 rib, often 400-500 GSM or doubled, so they do not look thin next to the body.
4. Hood. A double-layer hood with a clean facing keeps its shape; very thick hoods can feel bulky, so some brands line them with lighter jersey.
5. Trims. Heavier drawcords, larger eyelets and strong labels match the weight.

Our 400 GSM hoodie manufacturer guide shows how the same choices work one step lighter.

How do you control shrinkage and fit?

Heavy cotton fleece can shrink 4-6% in length and 3-5% in width unless it is pre-shrunk or garment washed. The manufacturer should run a shrinkage test on the fabric lot, cut the pattern to allow for it, and measure washed samples against the size chart. If the hoodie will be garment dyed or washed, shrinkage can be higher, so measure the finished, washed sample. Hood height and sleeve length deserve extra checks because the weight pulls the fabric down when hung.

400 GSM vs 450 GSM vs 500 GSM hoodies: which option fits?

Choosing the right weight depends on your customer and season.

The trade-offs are premium feel versus comfort, cost and shipping weight. 500 GSM gives the strongest quality signal but is warmer, stiffer and heavier to ship. 400 GSM is easier to wear year-round. Many brands use 500 GSM for a hero hoodie and keep 400 GSM for the core range. For pricing context, see how much it costs to manufacture a hoodie.

Which decorations work on 500 GSM hoodies?

Thick fleece supports embroidery very well, including 3D puff and appliques, because the fabric stays stable under stitching. Screen printing works but needs stronger ink deposit and good curing, since the thick surface absorbs ink and heat. Puff print and high-density prints look strong on heavy fleece. Washing after decoration is possible, but test it first, as heavy fabric takes longer to dry and may crease. Our guide to embroidery vs screen printing for hoodies helps you choose.

What should you check on samples and in bulk?

Weigh the finished sample and confirm GSM with a fabric cut test. Check seam flatness at the shoulder and armhole, rib recovery, hood shape, drawcord length, and measurements after washing. In bulk, inspect GSM per fabric lot, seam strength, needle damage, shading between panels and finished measurements by size. Our hoodie quality control checklist lists the full points. For the full path, see the custom hoodie and sweatshirt manufacturing guide.

How does weight affect shipping and pricing?

A 500 GSM hoodie uses more fabric than a standard hoodie, so fabric is the largest part of its cost. As a typical industry estimate, fabric for ultra heavyweight fleece costs noticeably more per kilogram than midweight fleece, and each hoodie uses more kilograms. Shipping is also affected: at 1.0-1.3 kg per piece plus packaging, cartons fill and weigh out faster, which matters for air freight. Brands often plan sea freight for ultra heavyweight programs and use air only for samples or urgent restocks. Factor both fabric and freight into your retail price before choosing the weight.

Finally, plan packaging for the weight. Thick hoodies fold into larger, heavier packs, so confirm polybag size, folding method and carton count per box at the sampling stage. Clear packing specs avoid crushed hoods, deep fold creases and surprise freight costs when bulk ships.

500 gsm hoodie manufacturer: typical specs and key numbers

These are typical industry estimate ranges for planning, not quotes; confirm actual figures with your supplier for your fabric, quantity and destination.

Key takeaways

• 500 GSM fleece is about 25-40% heavier than standard hoodie fleece and drapes like outerwear.
• Patterns, seams, rib and trims must all be upgraded to match the weight.
• Run fabric shrinkage tests and measure washed samples against the size chart.
• Embroidery and puff decoration suit ultra heavyweight fleece especially well.
• Factor fabric cost and 1.0-1.3 kg shipping weight into pricing before choosing 500 GSM.

Request a 500 gsm hoodie manufacturer quote

Ready to sample a 500 GSM hoodie? Send your tech pack or reference images, fabric preference, colours and quantities through our quote request form. MOQ depends on style and fabric, so we confirm it in your quote together with sampling time, approval steps and an itemised price.