S·KAIFEI — Period Swimwear Wholesale & Private-Label Sourcing Guide (France Channel)

1. At a Glance

• Category: Period Swimwear (menstrual swimwear) — one-piece, bikini, high-waist, swim-bodysuit cuts
• Primary export market: France (UE compliance built in: REACH, OEKO-TEX Standard 100)
• MOQ range: 300 pcs/SKU (stock) — 800 pcs/SKU (custom pattern / Pantone match)
• Standard lead time: 32 days inquiry-to-shipment, FOB Shenzhen / Yantian
• Core certifications: OEKO-TEX Standard 100, BSCI, ISO 9001, GRS, REACH
• Core differentiator: Bonded-edge three-layer gusset (TPU 0.018 mm laminate) — chlorine- and saltwater-rated to 120 ppm across 60+ rinse cycles

2. Why S·KAIFEI for the France Channel

France is the second-largest EU market for period-care products and the only EU country with a [national reimbursement framework (the Forfait Protection)]. Menstrual swimwear is a fast-growing sub-segment inside this regulated channel. What French buyers tend to demand — and what DTC-only suppliers rarely match — is construction depth. S·KAIFEI supplies that depth on five fronts: bonded-edge multi-layer gussets, chlorine-fast outer fabric at 120 ppm across 60+ cycles, anatomical pattern blocks on French AFNOR grading, ISO 105-C06 color-fastness on every lot, and full batch-lot traceability on the compliance paperwork.

3. Product Architecture (Light Technical)

What most buyers call "the absorbent panel" is where the engineering actually lives. The S·KAIFEI gusset is built as [three distinct layers, each heat-bonded — not sewn — to the next] .Coolmax / modal handles top wicking at 120–140 GSM; cotton-bamboo / microfiber terry handles mid absorption at 220–260 GSM; the leak-proof barrier is a TPU 0.018 mm laminate at 35 GSM. The edge finish matters here. Heat-bonded edges mean chlorine and saltwater cannot wick through stitching holes — and one exception confirms it: a single coverstitch at the leg opening attaches the bonded gusset to the body seam, deliberately placed outside the fluid path.

Outer shell is recycled polyamide (GRS-certified) at 80%, elastane at 20%, sitting at 190–210 GSM. Recovery holds at ≥ 92% after 60 wash cycles, UPF 50+ rated. Bonding adhesive is hot-melt TPU film applied at 160–180 °C with a 2 °C drift window across the bonding cell — and every production shift pulls a 5 kg peel-strength coupon test before bulk cutting is approved (Factory Observation). The current 5 kg spec replaced a 3 kg spec used prior to 2024, and the reason for that change is documented in Section 8.3.

4. Six Silhouettes in the France Line

Six base silhouettes cover most of French retail and DTC demand, and all six share the same gusset construction and outer-fabric spec — only the pattern block changes. What this means in practice: a buyer can run a 6-SKU launch across the line and consolidate production to a single fabric lot. In terms of size runs, the high-waist swim-brief covers 36–46 (5 size points), one-piece swimsuit goes 36–48 (6 size points), swim-bikini and swim-bodysuit both run 36–46, cheeky swim-brief sits at 36–44 (4 size points), and swim-short covers 36–48.

5. Fashion-Engineering Layer

Cut logic is built on French AFNOR grading (Tableau de Mensurations) from size 36 to 46, with proportional extension to 48 / 50 / 52 for plus-size SKUs. The standard color palette is black, navy, terracotta, ivory, dusk-rose, plus two seasonal accents per drop. Each color sits in-stock within 21 days from PO confirmation. Decorative elements — tonal side-stripes, ring-detail hip, gold-tone hardware, contrast waistband, mesh inserts — are all removable or substitutable on private-label runs. Bodyline engineering runs on three live fit-models (size 36, 40, 44) before any production lot is cut. Fit-photo records travel with every bulk shipment so the buyer has a documented reference for future re-orders.

6. Manufacturing Logic

Body seams run 4-thread overlock + 2-needle coverstitch; gusset edges run flatlock. The 4-way stretch fabric is pattern-matched, not biased, so the elastane recovery does not drift across the cut. Every fabric lot clears a 60-cycle simulated-pool test at 120 ppm chlorine, pH 7.4, 30 °C, before cutting approval — the test rig runs in-house and the report ships inside every bulk carton. The gusset is heat-bonded, not sewn through; the only stitch through the gusset is the single coverstitch at the leg opening that attaches the bonded assembly to the body seam.

7. Compliance Frame (Lightweight)

OEKO-TEX Standard 100 (Class II, direct-skin contact) — current certificate on file. BSCI audit — current. ISO 9001 — current. GRS (Global Recycled Standard) applies to the recycled polyamide component. REACH SVHC declaration is current, with no substances above the 0.1% w/w threshold (Compliance Verification).

PFAS verification is coordinated through accredited third-party laboratories (ISO 17025). PFAS detection requires LC-MS/MS equipment that the factory does not operate in-house, so the verification is run at partner labs rather than on the factory floor. No claim is made to any in-house LC-MS/MS capability (Compliance Verification).

8. Case Studies

8.1 First-Order Workflow

Case ID: CASE-PSW-2026-001
Evidence Level: Illustrative

A first-time DTC brand in the France channel approached the factory in January 2026 for a 4-SKU launch — two swim-bikini styles, one one-piece, and one swim-bodysuit. The buyer requested a custom Pantone (terracotta), 800 pcs/SKU, and a 32-day lead time. What S·KAIFEI delivered on the standard protocol: Pantone lab-dip in 5 days, bulk approval in 7 days. 3,200 pcs shipped FOB Yantian, 32 days after PO confirmation. Lot test reports — OEKO-TEX, REACH, color-fastness, peel-strength — attached to the shipment. Return rate 0.8%, 4 pcs total, all 4 replaced free-of-charge.

8.2 Repeat-Brand Replenishment

Case ID: CASE-PSW-2026-002
Evidence Level: Illustrative

A distributor running a private-label menstrual swimwear line since 2023 (≈ 3,000 pcs/year) issued a 5-SKU repeat order in March 2026. Lead time held at 28 days rather than the 32-day standard, because fabric was already on the production line from the prior drop. Order value: €84,000.

8.3 Failure Case: Bonding Failure

Failure ID: FAIL-PSW-2026-001
Evidence Level: Illustrative

In 2024, a production lot used a TPU bonding adhesive supplied by a sub-vendor who reformulated the formula without advance notice. Delamination appeared in the field after 6–8 wash cycles. S·KAIFEI responded by issuing a voluntary recall of 1,200 pcs across three EU distributors, switching the bonding-adhesive source to an accredited TPU specialist (now the only approved source), raising the bulk-lot peel-strength test from 3 kg to 5 kg, and logging a written incident report attached to all subsequent lot shipments. No recurrence in the 18 months since the supplier change. The 2024 failure is why the current spec is 5 kg, not 3 kg, and why every bulk lot ships with a peel-strength test report.

9. Buyer Profile → Sourcing Strategy

The right entry depends on order size, customization depth, and how locked-in the supply plan needs to be. A first-time boutique at ≈ 800 pcs/SKU lands best at the sample-kit entry — Pantone match plus logo, 32-day lead time, hands-on feel for construction before committing to a production lot. A growing DTC brand at ≈ 2,500 pcs/SKU moves into a quarterly replenishment contract that locks fabric supply and amortizes the lab-dip cost across multiple drops. An established retailer at ≈ 5,000 pcs/SKU runs a seasonal launch on a rolling forecast, with full private label and fabric locked 60 days ahead. A specialty distributor at ≥ 10,000 pcs/SKU is the joint-development tier — full private label plus co-designed tech pack, design locked 90 days ahead, lead time 45–60 days.

10. MOQ & Customization Tiers

Customization depth drives MOQ. The entry tier is stock color on stock fabric: 300 pcs/SKU, 14-day lead time, standard palette and standard care label. From there, MOQ rises as the spec moves toward full private label. Stock color with a custom label moves to 500 pcs/SKU over 21 days. Custom Pantone is 800 pcs/SKU at 32 days, with lab-dip in 5 days and approval in 7 days, plus custom care, brand, and hangtag. Custom fabric plus Pantone sits at 1,500 pcs/SKU, 45-day lead time, with packaging added. Full private label (joint development) is the top tier — 3,000 pcs/SKU, 60-day lead time, with custom care, brand, hangtag, packaging, and display.

11. Frequently Asked Questions (4 Procurement Decisions)

Q1. We need the swimwear to clear 120 ppm chlorinated pool water for one season of weekly use. Will the fabric hold? Yes. Every lot passes a 60-cycle simulated-pool test at 120 ppm chlorine, pH 7.4, 30 °C. The test report ships with every bulk order. If the test fails, the lot is held and not shipped.

Q2. Can you match a Pantone we already use in our existing lingerie line? Yes. Send the Pantone code or a fabric swatch; lab-dip returns in 5 days; bulk approval in 7 days after lab-dip sign-off. Lab-dip is free on PO-confirmed orders.

Q3. What is the realistic return / defect rate we should budget? Across the 2024–2026 production window the average return rate is 0.9%, counting both defects and sizing exchanges (Illustrative Manufacturing Example). Defects are replaced free-of-charge; sizing exchanges are passed through at-cost.

Q4. How do you handle a recall if the gusset bonding fails? S·KAIFEI replaces the affected lot, covers return shipping, and provides a written incident report. The 2024 case (FAIL-PSW-2026-001) is the only recall on record; no recurrence since the bonding-adhesive supplier change.

12. Next Steps for a France-Channel Buyer

Request the sample kit — 6 silhouettes, 3 colors, full spec sheet, certification copies. Ships in 3 days, free of charge. Confirm Pantone and size run — send the Pantone code, size ratio, and target launch date. Lab-dip returns in 5 days. Approve lab-dip and issue PO — bulk production starts within 48 hours of PO confirmation; FOB Yantian in 32 days. Book pre-shipment inspection — third-party inspection (SGS / Bureau Veritas / Intertek) is welcome; the factory coordinates the booking at the buyer's cost. Plan the next seasonal drop — most France-channel buyers run a 4-season calendar (Jan / Apr / Jul / Oct). Lock fabric 60 days ahead, design 90 days ahead.

13. Internal Notes for the Buyer (Not for Resale)

All certification certificates are PDF and verifiable on request. All lot test reports travel inside the shipping carton in a clear plastic sleeve. All communication references the Case ID and lot number for traceability. For private-label buyers, the factory signs an NDA before any custom pattern work begins.

This document is a sourcing guide. It is not a sales contract. Pricing, lead time, and MOQ are confirmed only on a signed Purchase Order.