What a Tracksuit Manufacturer Needs to Know From You
A tracksuit is a matching top and bottom, usually a zip jacket or sweatshirt with joggers, made to be worn together. Because both pieces are sold as a set, the buyer sees any mismatch immediately: a jacket that is a slightly different shade from the trousers, or a top that shrinks while the bottoms do not. A tracksuit manufacturer therefore has to manage fabric, dyeing and sizing across two garments instead of one.
Joggers on their own are simpler, and they are one of the most common products in casual and streetwear ranges. They typically combine a fleece or French terry body with an elasticated waistband and a cuffed ankle. Many of the decisions below apply equally to joggers sold separately, so use this guide whether your product is a single pair or a full set.
The sections that follow cover anatomy, fabric choice, weights, matching issues and a development path. If you are choosing between fleece and French terry, our guide to hoodie fabric and GSM explains the two structures, and the same logic applies to joggers.
Anatomy of Joggers and Tracksuit Tops
Writing the construction details down is the single most useful step before you approach a tracksuit manufacturer. The table lists the components that need a specification, with the choices you will be asked to make for each.
Components to specify on joggers and tracksuit jackets
| Component | Choices | What to decide |
|---|---|---|
| Waistband | Elastic only, elastic with drawcord, flat-lock stitched, double layer | Width, stretch recovery and whether the drawcord has eyelets or a tunnel |
| Drawcord | Flat cord, round cord, with or without metal or printed tips | Length, finish and end details |
| Cuffs | Rib cuff, open hem, elasticated hem, zip hem, tapered | Cuff height and how tight the opening is |
| Pockets | Side seam, slanted, zip pocket, back pocket, cargo pocket | Pocket depth, bar-tack reinforcement and bag material |
| Seams | Overlock, cover-stitch, flat-lock, topstitched | Stitch type, thread colour and visible decoration |
| Fit | Slim, regular, relaxed, wide leg, tapered | Rise, thigh, knee and leg opening measurements |
| Jacket closure | Full zip, half zip, popper, pullover | Zip type, length and puller design |
| Branding | Embroidery, print, rubber patch, woven label | Placement and size on each piece |
A general specification checklist. The tech pack should state a value or reference for each item.
Pocket and waistband details are where cheaper construction shows up first: a thin pocket bag, a weak drawcord or a waistband that loses its stretch after washing. Ask to see these details on a sample before you approve the style.
Tracksuit Fabrics Compared
Four fabric families cover most tracksuits and joggers. Fleece and French terry are cotton-rich knits with a looped back, velour has a soft cut-pile face, and tricot is a smooth polyester warp knit used for the classic shiny track suit. The table compares them. If you want more detail on the loop-back constructions, see our guide to fleece fabric types, weights and uses.
Fabric options for tracksuits and joggers
| Fabric | Typical composition | Handfeel and look | Best for |
|---|---|---|---|
| Cotton-rich fleece | Cotton with some polyester, brushed back | Soft, warm, slightly heavy; matte finish | Winter joggers and hoodie sets, streetwear |
| French terry | Cotton or cotton-polyester, unbrushed loop back | Lighter, smooth face, more breathable | Spring and summer sets, lightweight joggers |
| Velour | Cotton or cotton-polyester or polyester with a pile face | Plush, luxurious, a retro sheen | Fashion tracksuits and loungewear |
| Polyester tricot | Polyester, smooth warp-knit | Smooth, shiny, lightweight, low shrinkage | Classic sports track suits and team warm-ups |
| Polyester or poly-cotton interlock | Blends with a double-knit structure | Stable, smooth, medium weight | Smarter track tops and joggers |
General fabric families. Composition, finish and handfeel differ by mill, so request swatches.
Typical GSM for Tracksuit Fabrics
Fabric weight shapes drape, warmth and cost. Heavier fleece feels premium and holds its structure but is bulkier to wear and ship. Lighter French terry drapes better and suits warm weather. The chart shows typical ranges, which vary by mill and construction, so treat it as a starting point for conversations.
Typical GSM ranges for tracksuit and jogger fabrics
Grams per square metre
Typical ranges, which vary by product, yarn and factory. Confirm the exact target and tolerance in your specification.
Our fabric GSM guide shows how to measure the weight of a swatch and what tolerance is commonly accepted.
Indicative Fabric Ratings for Sets
The matrix below converts the main differences into a five-point scale so you can see which fabric suits which priority. The scores are indicative and based on typical characteristics, not test results.
Tracksuit fabrics compared
1 dot = low, 5 dots = high
| Cotton-rich fleece | French terry | Velour | Polyester tricot | |
|---|---|---|---|---|
| Warmth | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Softness | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Breathability | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Shrinkage stability | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Pilling resistance | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Shape retention | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
Indicative ratings based on typical fabric/process characteristics, not laboratory results.
Cotton-rich fabrics are comfortable but need pre-shrinking and testing. Polyester tricot is stable but lacks the softness of fleece, so choose by priority.
Matching Sets: Dye Lots, Shrinkage and Size Logic
A matching set is only as good as its weakest match. There are three recurring problems, and each can be controlled if you ask for it at the start.
- Shade difference: the top and bottom must come from the same dye lot, ideally the same fabric roll batch. Different lots of the same colour can differ slightly, which is most visible in black, grey and navy.
- Shrinkage mismatch: if the jacket and trousers use different fabrics, such as a heavier fleece for the top and French terry for the bottoms, they may shrink by different amounts and the set will drift apart after washing.
- Size logic: decide whether sets are sold only as matched sizes or as separates. Customers often mix sizes, and a fit range such as a relaxed top with slim bottoms needs to be considered in grading.
Ask your factory to cut top and bottom from the same fabric lot, to report shrinkage results on both pieces and to show you a washed set before bulk. Our garment testing guide lists the tests to request.
Cuffs, Waistbands and Pockets: Choosing Details That Last
Details decide the silhouette and the price. A rib cuff gives the classic jogger look and holds the trouser at the ankle, but it needs a rib with good recovery or it will bag out. An open hem gives a straighter, more relaxed profile. Elasticated waistbands are comfortable, but the elastic should be stitched securely and covered, and a drawcord should not pull through.
Cuff and waistband options
| Detail | Look and use | Watch out for |
|---|---|---|
| Rib cuff | Classic jogger look, gathers at the ankle | Rib recovery and colour matching with the body |
| Open hem | Straight leg, relaxed profile | Hem stability and the ability to hold shape |
| Elastic hem | Tight, sporty finish | Comfort and elastic durability |
| Zip hem | Fashion detail, easier to put on over shoes | Zip quality and fabric stability |
| Elastic waistband with drawcord | Adjustable, comfortable | Eyelet strength and drawcord length |
| Flat waistband with elastic back | Smarter look | Fit consistency across sizes |
Descriptions of common details; ask the factory to show samples on comparable garments.
How to Develop a Tracksuit or Joggers Range
A set takes longer to develop than a single piece because the top and bottom must be approved both individually and together. A clear process saves rounds of samples and avoids approving a style that fails at bulk.
From reference to approved set
- 1Reference and briefShare a reference set, photos and the fit you want, plus target fabric and weight.
- 2Tech packRecord measurements, construction, trims and branding. See our tech pack guide.
- 3Fabric swatchesCompare handfeel, weight and drape, and agree one fabric lot for the set.
- 4Prototype and fitFit the top and bottom together, then individually.
- 5Wash test the setCheck shrinkage, colour fastness and pilling on both pieces.
- 6Pre-production and bulkApprove a final sample, then inspect bulk against it.
A general development path. Complex details such as zips or panels add sample rounds.
Fit the top and bottom on the same body at the same time. A pair that fits well individually can look wrong together if the proportions are not considered.
Spec Checklist and Common Faults
Once the style is chosen, turn everything above into a written specification. The checklist below is a practical minimum for a set, and the fault table after it helps you review samples with a critical eye.
Tracksuit specification checklist
- Fabric composition, weight and construction for top and bottom
- Dye lot control and a colour reference for each piece
- Shrinkage target and tolerance, tested on the set
- Measurements for each size, including rise and leg opening
- Waistband, drawcord and cuff specification
- Pocket style, depth and reinforcement
- Zip type and puller finish for jackets
- Branding placement, size and decoration method
- Size set logic: matched sizes or separates
Most faults come from details left unsaid. The table lists the problems that appear most often and where to look for them in a sample.
Common tracksuit faults and what to check
| Fault | Likely cause | How to check |
|---|---|---|
| Top and bottom do not match | Different dye lots or fabric batches | View both pieces side by side in daylight |
| Cuffs bag out | Poor rib recovery or loose yarn | Stretch and release the cuff after washing |
| Waistband loses stretch | Weak elastic or stitching | Wash test, then check elasticity |
| Legs twist after washing | Knit skew or poor cutting | Check side seams before and after washing |
| Pocket bags show through | Light fabric or poor lining | Look at the garment on the body |
| Pilling on thighs | Staple fibre and friction | Request a pilling test |
A general fault list. Specific causes vary by fabric and factory.
Fit, Sizing and Grading for Joggers and Sets
Joggers are forgiving garments, but fit still decides whether they sell. The most important measurements are the waist when relaxed and stretched, the rise, the thigh, the knee and the leg opening. A relaxed fit with a tapered ankle needs a different pattern from a wide-leg pair, and a pattern that looks right on a medium can lose its proportions at the ends of the size range if it is graded mechanically.
For sets, think about how the top and bottom relate. A boxy, cropped top looks very different over slim joggers than over wide ones, and the jacket length affects how the waistband shows. Fit both pieces together on the same model, and check how each size looks as a set, not only as a single piece. Our sweatshirt fabric and knit types guide helps when you are matching fabric behaviour in the top to the bottoms.
How to Choose a Tracksuit Manufacturer
A good tracksuit manufacturer is one that has made sets in your fabric type before. Ask to see comparable pieces, not just a catalogue. Check whether they cut top and bottom from the same lot as standard practice, whether they run shrinkage tests on both, and how they approve cuffs and waistbands. These questions separate a factory that understands matching sets from one that treats each garment in isolation.
- Ask for examples of tracksuits or joggers in the same fabric family you are planning.
- Ask who sources the fabric and how the dye lot is controlled across the set.
- Ask what tests are run on shrinkage, colour fastness and pilling, and who performs them.
- Ask how many sample rounds are normal for a set, and what each round costs in time.
- Ask how they inspect bulk, and whether they check top and bottom together.
Compare at least two quotes on the same specification, with GSM, composition and trims written out, so you are comparing like with like. A cheaper quote with a lighter fabric or thinner trims is not the same product.
How Ruhrose Approaches Tracksuits and Joggers
Fleece and jersey tracksuits and joggers sit within Ruhrose's core. We develop hoodies, jersey garments and casualwear for UK buyers, with production in Bangladesh, and we sample before bulk so you can check the fit, the matching and the shrinkage on a washed set before committing. If your idea is a polyester tricot track suit, tell us early: it is a different fabric and sourcing route, and we would discuss feasibility before you plan around it. Technical sports tracksuits with performance finishes are outside our scope, as described in our sportswear manufacturer guide. For the hoodie half of a set, see our custom hoodie manufacturer guide.