Choose underwear seams by location, required extension and contact with the body. Flatlock, overlock and bonded constructions are options to compare on the actual fabric, not a hierarchy in which the flattest-looking join is always best. A pouch seam, side seam and waistband attachment do different jobs. Map those locations before asking a factory to
An undershirt can meet its flat body-length measurement and still pull out of trousers. The result depends on torso length, trouser rise, garment width, fabric recovery and the movement that lifts the hem. For an untucked design, extra length can instead create a visible tail or bunch beneath the outer shirt. Choose the wearing position
Two undershirt fabrics with the same GSM can differ visibly in coverage. GSM expresses mass per unit area; it does not describe the size of the spaces between knitted loops, the colour contrast behind the fabric or how those spaces change when the garment stretches. Specify weight and coverage as separate requirements. First decide which
The best fabric for a particular undershirt is the one that performs acceptably in the intended garment and outer layer after care. Cotton, modal and viscose are useful starting points for a sample request, but the fibre name does not specify surface friction, length stability or how the finished shirt lies under clothing. Compare complete
A brand choosing between crew-neck and V-neck undershirts is choosing which dressing situations the range will serve. Adding a tank creates another coverage option, but also another fit block and stock commitment. Begin with the customer’s outer layer and need for underarm coverage, then decide how many styles the sales plan can support. Compare styles
How to read factory profiles and rankings for clothing manufacturers in China, and verify licences, equipment, certifications, references and capacity claims.
How startup brands verify a clothing manufacturer before sampling: category, machinery, minimum and site, plus colour approval, trims and second-order planning.
Private label compliance by market: fibre composition and care labelling, origin marking, label types, hangtags, packaging rules and the artwork approval flow.
The tech pack inputs a custom apparel manufacturer needs before a quote is valid: drawings, measurements, construction, fabric, decoration and quantity.
How wholesale clothing price breaks really work: fabric batch, decoration setup, cutting and carton thresholds, and when a higher tier costs more in total.
Apparel supplier onboarding in China: documents to collect, sample terms, payment triggers, tooling ownership, inspection rights and a first-order checklist.
Red flags in the first three replies from a clothing supplier in China: prices without specs, moving MOQs, silent tech packs, unnamed sites and payment terms.
