A tracksuit is one of the most reliable pieces in a UK wardrobe and one of the easiest to get wrong. Two sets can look almost identical on a hanger, yet one holds its shape through a full winter of wear while the other pills, sags and goes thin after a handful of washes. The difference usually comes down to three things: fabric weight, fit, and construction. This guide breaks down what 500GSM really means, how to pick the right fit for an oversized hoodie or a matching set, and how to tell premium heavyweight fleece apart from fast-fashion imitations before you spend your money.
What Does 500GSM Actually Mean?
GSM stands for grams per square metre. It is the simplest measure of how much fabric is packed into a given area, and it tells you far more about a tracksuit than the label inside the collar.
- Under 250GSM: lightweight and thin. Fine for summer shorts and tees, but it will not hold structure in a hoodie or track pant.
- 300 to 400GSM: the middle ground. Comfortable, but often ranges from solid everyday fleece to a much looser, less dense knit depending on the mill.
- 500GSM and above: true heavyweight fleece. Denser, warmer, more structured, and much slower to lose its shape.
A 500GSM hoodie is not simply "thicker". The extra weight comes from denser yarn and tighter knitting, which is why it drapes cleanly instead of collapsing at the shoulders, keeps its shape through the elbows and hem, and insulates without needing a bulky lining. If you want a set that looks intentional rather than shapeless, weight is the first number to look for.
Why Heavyweight Fleece Feels Different to Wear
Weight changes how a garment behaves on the body. A heavier fleece hangs with a slight break, so an oversized hoodie reads as a deliberate silhouette rather than a baggy one. It resists the creasing that makes lighter fabrics look tired, and it keeps its loft after washing, so the set you buy in October still looks like the set you bought in October come February.
Heavier fabric also takes branded details better. Printed and embroidered graphics sit flatter on a dense surface and hold their edges, which is why a heavyweight set tends to keep its identity far longer than a thin one.
How to Choose the Right Fit
Fit is where most people overshoot or undershoot. Start with how you want the set to sit, then work backwards to size.
Oversized hoodies and relaxed track pants
If you want the classic streetwear look, choose a hoodie that sits at the top of the shoulder and falls just past the hip. An oversized cut should look relaxed, not borrowed. Track pants work best when the waist sits where you would wear jeans and the leg tapers slightly toward the ankle; an open-bottom pant gives a cleaner line, while a cuffed hem reads more athletic.
Matching sets and layering
A matching set does more work than two separate pieces, because the fit has to work in both directions. Check that the hoodie and pants share the same colour depth and the same fabric weight. If you plan to layer a tee underneath, size the hoodie for the tee, not around it, so the neckline and hem sit cleanly. VELLURE's Vision Over Noise sets are built as coordinated pieces, so the hoodie and pant are cut to work together rather than just sharing a colour.
When to size up
Size up if you want a fuller drop through the body or plan to wear a mid-layer in winter. Size down only if you want a sharper, more contemporary line and you know the fabric is heavyweight enough to hold shape without help. Because 500GSM fleece already has structure, most people can stay true to size on a heavyweight set and size up only on lighter fabrics.
How to Spot Premium Construction From Fast-Fashion Copies
Weight alone is not proof of quality. Look closer before you commit:
- Fabric density: pinch the fabric. Heavyweight fleece feels substantial and springs back; cheap fleece feels papery and stays creased.
- Stitching: check the shoulder seams, cuffs and hem. Even, dense stitching with no loose threads is a good sign. Skipped or wavy stitching is not.
- Ribbing: cuffs and hems should snap back into shape. If the ribbing feels flimsy, the whole garment will loosen quickly.
- Hardware and trims: zips, eyelets and drawcords tell you what the brand actually prioritised.
- Branding accuracy: on a premium piece, logos and graphics are placed straight, sized consistently, and bonded to the fabric cleanly.
If a listing claims heavyweight but cannot tell you the fabric weight, that is your answer.
Where VELLURE Fits In
VELLURE builds tracksuits for people who want a set that looks considered without trying too hard. The range covers genuine heavyweight fleece, from the Grey Acid-Wash 500GSM Signature Hoodie, a limited-edition piece in a distinctly VELLURE finish, to coordinated hooded sets like the Cream Vision Over Noise Hooded Tracksuit and the Brown Vision Over Noise Hooded Tracksuit. The VELLURE Tracksuits collection brings the full range together, alongside tees and hoodies for building a set that works across the week.
Two practical notes before you buy: check the live product page for the current price and size availability, because stock on limited and seasonal pieces moves, and read the specific product description rather than assuming every set shares the same fabric.
Quick Buying Checklist
- Look for the fabric weight in GSM, not just the word "heavyweight".
- Match the fabric weight across the hoodie and pant in a set.
- Decide oversized or true-to-size before you check the size chart.
- Inspect stitching, ribbing and branding placement on the photos.
- Confirm price and availability on the product page for the colour and size you want.
The Takeaway
Choosing a heavyweight tracksuit is mostly a question of paying attention to what you cannot see at a glance: the fabric weight, the density of the knit, and the quality of the construction. Get those right and the fit follows. If you want a set that holds its shape, feels premium on the body and keeps its look for seasons rather than weeks, start with the fabric weight and work from there. Join the vision.