Underwear is worn against the skin all day, sold in multipacks, and rarely accepted back once opened. Those three facts shape every specification decision in the category: the fabric has to recover its shape after stretching, the waistband carries the brand, and the pack is the shelf display. We produce boxers, trunks and briefs to buyer specification, with fabric, elastic and pack format each approved before bulk.
What underwear styles does a boxer manufacturer in Bangladesh produce?
We produce woven boxer shorts, knitted trunks, boxer briefs and briefs. Woven boxers are cut from shirting-type cotton and fit loosely; trunks, boxer briefs and briefs are cut from knitted jersey or rib containing elastane, which gives the close fit those styles depend on.
| Style | Base fabric | Typical weight | Leg |
|---|---|---|---|
| Woven boxer | 100% cotton poplin, oxford or flannel | 100–140 g/m² | Loose, open leg |
| Trunk | Cotton-elastane single jersey | 160–220 g/m² | Short, fitted |
| Boxer brief | Cotton-elastane or modal-elastane jersey | 160–220 g/m² | Longer, fitted to mid-thigh |
| Brief | Cotton-elastane jersey or rib | 160–200 g/m² | None |
Woven and knitted underwear sit under separate customs headings — HS 6207 for woven men's underpants and 6107 for knitted — and run on separate production lines, so a range that mixes both is quoted as two programmes.
Fibre description carries legal weight in this category. Modal is a regenerated cellulose fibre made from beech wood pulp; "bamboo" fabric is almost always viscose made from bamboo pulp, and the US Federal Trade Commission requires it to be labelled as rayon or viscose made from bamboo rather than as bamboo. We label to the fibre, not the marketing name.
Buyers who need underwear without a production cycle start with available boxers lots, where each listing states fabric, style, size ratio and pack format.
Which fabrics and weights suit knitted trunks?
Single jersey in 92/8 to 95/5 cotton-elastane at 160 to 220 grams per square metre is the commercial base for trunks. 1x1 rib gives more stretch and a textured face; modal-elastane gives a smoother, cooler hand at a higher fabric cost.
Elastane — the generic name for spandex — supplies the recovery that stops the seat and leg bagging after an hour of wear. Below 5 percent, recovery falls off; 5 to 8 percent covers mainstream retail. Elastane fabrics must be heat-set on a stenter frame after knitting to fix the width and control residual shrinkage, and a fabric that skips heat-setting narrows and twists after the first wash.
The knitting and dyeing route is shared with t-shirt manufacturing, but the finishing is not: t-shirt jersey is compacted, while elastane jersey is heat-set, and the two processes are not interchangeable. Micro-polyester and nylon-elastane blends serve sport and performance underwear, where moisture transport and quick drying outrank cotton handfeel.
Stated weight is finished weight, measured after dyeing and heat-setting. What fabric weight means explains how the GSM figure is measured and why two fabrics at the same GSM can feel different.
How are branded waistbands and elastics specified?
Waistbands are either exposed jacquard elastic with a woven-in logo, or covered elastic enclosed in body fabric. Each is specified by width — commonly 25 to 45 millimetres — stretch percentage, yarn and recovery. Branded elastic is woven to order by the elastic mill.
- Jacquard elastic — logo woven into the band; requires artwork approval and carries a minimum length per design and colourway.
- Printed elastic — logo printed onto plain elastic; lower minimum, and print durability is tested through repeated washing.
- Covered elastic — plain elastic enclosed inside a fabric channel; no visible branding.
- Brushed-back elastic — soft-raised inner face against the skin; used on premium lines.
The waistband is the most visible branding point and the slowest trim to procure. Jacquard elastic is woven, dyed and finished to order, and it gates assembly: no trunk is closed until the band arrives. Elastic colour is approved on a physical sample against the body fabric, because elastic yarns and cotton jersey take dye differently.
Construction details start at the band. Flatlock seams lie flat against the skin and suit trunks and boxer briefs; overlock with coverstitch topstitching suits woven boxers. A contoured front pouch is cut as a separate panel. Neck-style care labels cause irritation at the waist, so most programmes use tagless heat-transfer labels printed inside the back.
What testing does underwear need before shipment?
Underwear is tested for dimensional stability, colour fastness to washing and perspiration, elastic recovery and restricted substances. OEKO-TEX Standard 100 Product Class II, which covers articles worn in direct contact with skin, is the label most retail buyers request.
| Test | What it checks | Why it matters in underwear |
|---|---|---|
| Dimensional stability | Shrinkage after a standard wash | Fit changes after first wash |
| Colour fastness to perspiration | Dye transfer under acidic and alkaline sweat | Prolonged skin contact |
| Colour fastness to washing | Shade loss and staining | Multipack colours washed together |
| Elastic recovery | Return to length after stretch cycles | Waistband loosening |
| Restricted substances | Azo dyes, formaldehyde, heavy metals | Regulatory and retailer limits |
OEKO-TEX certification attaches to the fabric and the finished article, and the position for a given base is confirmed at quotation. OEKO-TEX Standard 100 explains the product classes and what a certificate covers.
How are boxers packed for retail?
Retail formats include single units on hangers or in boxes, multipacks of 2, 3 or 5 in printed sleeves or boxes, and polybags carrying a suffocation warning. Pack format is fixed with the order, because it changes unit cost, carton count and cubic volume.
Multipack presentation decides how the product sells. A three-pack box needs dieline artwork, a barcode in GTIN or EAN-13 format, and a size sticker visible on the shelf face; a sleeve uses less board and shows the waistband directly. Suffocation warnings on retail polybags are required by retailer policy and by law in certain markets, and the wording is set by the destination market.
Export cartons are packed to a stated size ratio — for example S:M:L:XL in 1:2:2:1 — and the ratio is agreed per carton, not per order, so the receiving warehouse breaks cartons without re-sorting.
How an underwear order runs, and how to start one
Minimums are confirmed per style in the quotation. In this category the floor is set by the branded elastic and the printed packaging rather than by sewing, and a programme that shares one elastic across several colourways reaches it faster.
- Brief — style, fabric, weight, waistband type and pack format.
- Fit sample — fit, elastic tension and pouch shape confirmed.
- Elastic and packaging approvals — jacquard artwork, colour and dielines signed off.
- Pre-production sample — bulk fabric, bulk elastic, bulk pack.
- Bulk, testing and inspection — fabric tests and a final inspection before shipment.
Send a reference garment or a specification stating style, composition, weight, waistband type and width, and pack format. We quote against it and state elastic and packaging lead times separately, because both gate the order. Request a wholesale quotation, or read how lead times are built before setting a delivery date.