Xiamen Unitex Trade Co., Ltd. is a professional underwear sourcing & supply-chain management company based in Xiamen, Fujian Province, in the Xiamen–Quanzhou–Jinjiang knitwear cluster of south-east China. Founded by Will Lin, who has worked in the apparel trade since 2004, the company has been exporting since 2009 and was incorporated in Xiamen in 2013. It runs its own liaison office in Jinjiang and works with a network of BSCI & OEKO-TEX Standard 100 certified partner factories to serve retailers and brands across Europe, the US and Australia.
A men’s underwear range is decided by four coverage points, not by how many prints a catalogue carries: brief, trunk, boxer brief and boxer short. Each is a separate pattern with its own fabric consumption and its own minimum order quantity, and rise — low, mid or regular — multiplies that matrix again. Ranges that sell through tend to carry two or three of the four rather than all of them, because depth in a style outsells breadth across styles at the same open-to-buy.
This page sets out what a store, a private label or a brand programme has to fix before a quotation means anything: the coverage matrix, the style count, fabric and construction, size grading, pack format, and the MOQ and lead time that follow from those choices.
What a men’s underwear range has to decide first
The first decision is the coverage matrix, and it is a cost decision before it is a design decision. A brief uses the least fabric per piece; a boxer short the most. Moving a style from trunk to boxer brief adds leg length and therefore fabric consumption, which shows up in the quotation as a per-dozen difference rather than a percentage.
The second decision is rise. A low-rise trunk and a regular-rise trunk can share a waistband and still need different patterns, so treating rise as a colour variant rather than as a pattern is one of the most common costing errors in a first range.
Fix both axes on paper before sampling. A range of two coverage points at one rise is cheaper to develop and easier to replenish than four coverage points at two rises, and it gives the buyer a clean read on which shape the market actually wants.
How many styles a first range should carry
Two or three coverage points, each in three to five colourways, is a workable first range for a store or a new private label. Below that the shelf looks thin; above it, the minimum order quantities start to bind, because each style and colour is its own minimum.
The practical constraint is the MOQ arithmetic. For men’s and women’s briefs the minimum is 2,000 pieces per style per colour, and there is no production run below it; a salesman sample at 50 pieces per style per colour is the only smaller quantity. A range of six styles in four colours is therefore twenty-four minimums, not one — which is why the style count is usually settled by the open-to-buy figure rather than by the design brief.
Where a store wants breadth without the minimums, the usual structure is two core styles carried deep and one seasonal style carried shallow, with the seasonal piece rotating on a shorter cycle.
Fabric and construction: what decides the repeat order
Cotton single jersey for men’s underwear typically runs 140–180 g/m². The lower end reads lighter and dries faster in warm markets; the upper end holds shape better and is the safer choice where the garment is worn for sport. Elastane content of 5–10 per cent is what keeps the waistband and leg openings recovering after repeated washing, and it is the first specification to check when a range comes back with complaints about bagging.
Construction matters more than the fibre name on the label. Flatlock seams — the four-needle six-thread stitch classified as ISO 4915 type 607 — sit flat against the skin and are the standard for a seamless-feel leg opening. A conventional overlock seam is cheaper per piece and is what a low quotation usually contains; the difference is visible on the inside of the garment and audible in a wearer complaint six weeks later.
Gusset construction is the third specification. A cotton gusset, a matched-colour lining and a clean flat seam are what allow a range to make a comfort claim at all. Specify them in the tech pack, not in a later email.
Size grading and the size chart
Men’s underwear is graded in two-centimetre waist increments in most export programmes, from S to XXL, with the size chart agreed before sampling. The chart, not the sample, is what the factory grades to, so a chart built from a competitor’s website will produce a garment that fits the competitor’s customer rather than yours.
Where a range sells into both European and North American markets, keep one grade rule and two size labels rather than two patterns. It keeps the MOQ consolidated and avoids a second set of minimums for what is physically the same garment.
What moves the unit price
Five variables move a men’s underwear quotation, roughly in this order: fabric weight and fibre, the number of pattern pieces and seams, the waistband construction, the pack format, and the order quantity per style and colour. A quotation that does not state fabric weight and waistband type is not comparable with one that does, which is how two prices for what looks like the same boxer brief end up a third apart.
Colour count matters more than colour depth. Each colour carries its own dyeing minimum at the fabric mill, so three colours in one style is cheaper to produce than the same total volume split across five, even though the garments are identical. Consolidating colourways is usually the fastest way to improve a price without touching the specification.
Pack format: where the retail unit is decided
The pack is the retail unit in most men’s underwear programmes, and it is specified at the same time as the garment. A three-piece pack needs a different folding standard, a different polybag and often a different carton count from a single-piece pack, and those three items move the landed cost more than a small change in fabric weight does.
Decide the pack before the quotation, not after the sample is approved. Changing from single to three-pack after sampling usually means re-cutting the folding standard and re-quoting the packaging line.
Custom logo and private label
Custom logo work on men’s underwear sits in four places: the woven waistband label, the printed care label, the hangtag and the pack printing. Each has its own tooling — a woven label loom set-up, a care-label print plate, a hangtag die and a pack print plate — and each is a one-off cost that belongs in the quotation as a separate line rather than folded into the unit price.
What is being customised is the branding and the packaging, not the fit. A private label range uses the factory’s existing blocks and grading; a new block is a development project with its own sampling cycle. Keeping the two separate is what stops a first order from turning into an unplanned development programme.
MOQ, sampling and lead time
Sampling runs in two tracks. A salesman sample — 50 pieces, available for men’s adult cotton boxer and brief styles — is quoted separately, with freight at the buyer’s account and production starting on receipt of payment in full. A development sample takes 12–18 days where fabric has to be developed, and a pre-production sample 5–7 days once bulk fabric is in house.
Bulk production runs 45–60 days for a new style and 30–40 days on a repeat. The commercial terms are the same fixed points on every order:
- Deposit: 30 per cent on order confirmation.
- Balance: 70 per cent against a copy of the bill of lading, by T/T or L/C at sight.
- Price basis: FOB Xiamen, quotation valid 30 days.
- Inspection: AQL under ISO 2859-1, agreed before production starts.
Partner factories in our network hold amfori BSCI and OEKO-TEX Standard 100 certification. Send a tech pack, a size chart, a target quantity per style and colour, and a target price — that is enough to quote a range rather than a single style.
· Xiamen Unitex Trade Co., Ltd. — OEM & ODM underwear sourcing partner