Organic Underwear Manufacturing
FOCS is a organic underwear manufacturer producing certified organic cotton underwear — boxers, briefs, tights and base layers — under our own GOTS licence. Underwear is the most skin-sensitive category in apparel: that is why we hold OEKO-TEX 100 Class I, the baby-grade standard, for everything we ship. Your brand gets GOTS transaction certificates and test reports that survive both retailer audits and customer scrutiny.
Underwear sits against skin all day, in the warmest and most absorbent conditions — which is exactly where chemical residues matter most. Conventional underwear can carry azo dyes, formaldehyde finishes and nickel trims. FOCS underwear is produced under GOTS (which restricts chemical inputs at every step) and tested to OEKO-TEX 100 Class I, the grade designed for baby products. Marketing 'organic underwear' without these documents is a claim waiting to be challenged.
Our knit background gives us a structural advantage in underwear: the same fine-gauge machines and elastic expertise that produce our certified socks create waistbands, cuffs and seamless-adjacent constructions with consistent recovery after 50+ washes — the failure point of cheap underwear programs. We test wash fastness and elastic recovery on every new style before bulk approval.
For brands, underwear is a high-repeat-purchase category: customers who trust your first pair buy multi-packs and subscriptions. That trust is built on certifications that verify — which is why we issue GOTS TCs per order and keep Class I test reports on file for your product pages and retailer submissions.
Certified organic fibre with full chain of custody, TC per order.
OEKO-TEX Class I safety — the strictest standard, applied to adult underwear too.
Elastic and fabric tested to 50+ washes before bulk approval.
Yes. FOCS holds the GOTS licence covering production, and every underwear order ships with a GOTS transaction certificate issued against your purchase order.
Men's and women's boxers, briefs, trunks, tights and base layers. We also produce matching sock-and-underwear sets for brands selling coordinated essentials.
500 pcs per style per color — a realistic entry point for an underwear line, especially combined with our sock programs.
Yes. Covered waistbands, printed logo elastic, nickel-free trims and azo-free dyes are standard options, with wash and recovery testing before bulk.
Yes. OEKO-TEX 100 Class I documentation is available for orders — a strong trust signal for underwear listings in EU and US markets.




Deep-dive guides written by our sourcing team — the same checklists we hand to brand buyers before a first order.