Project Overview & Background
Helly Hansen needed an OEM manufacturing partner for children's technical outerwear with strict waterproof protection, child safety compliance, and consistent production quality across multiple size ranges (92cm to 164cm).
RUINIU managed the entire development and production process—from material selection and prototype sampling to bulk manufacturing, seam-sealing execution, and rigorous quality inspection.
Project Requirements
| Product Type | Waterproof children's rain jackets — sizes 92cm to 164cm (ages 2–14) |
| Waterproof Performance | 10,000mm hydrostatic head minimum — fully seam-sealed construction required |
| Breathability | Breathable lining system for active outdoor use across different age groups |
| Child Safety | Child-safe zipper systems, accessory components, and trim specifications |
| Material Compliance | OEKO-TEX Standard 100 certified fabrics — free from harmful substances |
| Safety Standard | EN 14682 children's clothing safety considerations for cords, toggles, and accessories |
| Branding | Custom labels, hangtags, packaging, and reflective safety details per brand specification |
Manufacturing Challenges
Children's technical outerwear presents unique production obstacles that differ completely from adult garment manufacturing. Three core areas required strict production controls:
| 1. Maintaining Waterproof Performance After Sewing | For children's waterproof jackets, high fabric ratings alone are not enough. Every needle hole and seam construction choice directly influences leak prevention. Children's garment panels are significantly smaller than adult sizes. Applying waterproof seam tape onto narrow allowances—especially at tight curves like hood junctions and underarms—demands expert operator control to prevent coverage gaps or messy tape overlap onto the outer fabric. |
| 2. Children's Safety Requirements (EN 14682) | Children's wear requires rigorous regulation of hardware, trims, and cords to eliminate hazards. EN 14682 strictly limits drawcord length and placement to mitigate strangulation risks. Hood drawcords, waist adjusters, and zipper pull lengths required rigorous engineering reviews across every single size block in the grading scale—not just the sample size. |
| 3. Size Consistency Across Multiple Age Groups | Spanning sizes from 92cm to 164cm means panel proportions, grading shifts, and hardware placement change dramatically. Exact pattern control was vital to ensure uniform fit and waterproof integrity across all developmental age categories. |
Production Challenges We Solved
Maintaining Waterproof Performance on Small Size Panels
Children's jackets require the same high waterproof performance as adult outerwear, but smaller panels create much tighter seam areas.
During production, hood seams, underarm curves, and narrow seam allowances require precise seam tape application to avoid incomplete coverage or tape overlap.
How RUINIU Solved It: RUINIU dynamically adjusted seam sealing machine thermal parameters and tape widths according to specific panel dimensions, implementing active inline tape adhesion monitoring throughout the production run.
Manufacturing Capability Behind This Project
To successfully handle high-end technical outdoor brands, RUINIU provides robust infrastructure and factory capabilities:
24+ Years of dedicated garment manufacturing expertise.
600,000 pcs annual production capacity across advanced technical lines.
In-house Seam Sealing Equipment and testing labs for hydrostatic pressure verification.
Full OEM / ODM Support ranging from digital tech pack interpretation to complete bulk execution.
AQL 2.5 Final Inspection System paired with 100% full-garment metal and needle detection.
Technical Fabric and Material Selection
Material selection prioritized performance, comfort, skin safety, and durability. Every batch underwent strict lab pre-testing for color fastness, anti-pilling, shrinkage stability, and chemical compliance.
| Shell Fabric | 2-layer and 2.5-layer waterproof laminated polyester with eco-friendly DWR treatment |
| Lining | Breathable mesh and tricot inner lining — soft-touch brushed tricot laminate at collar and chin guard areas |
| DWR Finish | Eco-friendly DWR water-repellent treatment — applied to all shell fabric options |
| Zippers | YKK waterproof zippers with child-safe pullers — pull cord length verified against EN 14682 per size |
| Safety Details | Reflective trims for outdoor visibility — all cords and toggles reviewed for EN 14682 compliance per size block |
OEM Manufacturing Process
| 01 | Sample Development | Prototype samples developed based on brand specifications. Adjustments across sample rounds covered hood shape, sleeve proportion, zipper guard construction, cord compliance, and children's fit refinement across size groups. |
| 02 | Cutting and Sewing | Fabric panels cut using automated equipment to maintain sizing consistency and waterproof seam alignment across all sizes. Production teams controlled panel matching, stitching consistency, and seam construction throughout bulk manufacturing. |
| 03 | Seam Sealing | Hot-air seam sealing tape applied to all structural seams to maintain waterproof protection. Tape width and application parameters adjusted for smaller size panels to ensure consistent coverage at curved seam junctions. |
| 04 | Branding and Finishing | Custom labels, reflective trims, branded zipper pullers, and retail-ready packaging applied and verified against approved samples before final inspection. |
| 05 | Final Inspection and Packing | Garments inspected, steamed, folded, and packed per export standards. AQL 2.5 final inspection completed before shipment authorization. |
Quality Control Process
Quality inspection covered all production stages — not only final batch review before shipment.
| Fabric Inspection | Waterproof rating, color fastness, anti-pilling, shrinkage, and OEKO-TEX compliance verified before cutting begins |
| Sewing Workmanship Checks | Inline inspection at defined production intervals — seam tape adhesion and stitching consistency checked by supervisor before advancing to next operation |
| Measurement Verification | Finished measurements verified against approved size specifications across all size blocks |
| Waterproof Seam Inspection | In-house hydrostatic pressure testing on finished garments from each production batch — results checked against 10,000mm minimum before shipment authorization |
| Zipper and Accessory Checks | EN 14682 cord length and placement verified per size on each production run |
| Final AQL 2.5 Inspection | Random inspection covering measurements, workmanship, branding placement, and packing condition before shipment |
| Needle Detection | Full-garment needle and metal detection on every finished unit before packing |
Project Results
| Ongoing Partnership | The project has continued since 2021 with stable production performance across seasonal children's outdoor collections |
| Size Range | Children's sizes 92cm to 164cm produced consistently across multiple seasonal collections |
| Material Compliance | OEKO-TEX certified fabrics used across all orders — chemical compliance maintained throughout production |
| Waterproof Performance | Bulk hydrostatic test results consistently met and exceeded the 10,000mm minimum specification across all size groups |
| Repeat Production | Multiple seasonal collections developed and produced — repeat OEM cooperation maintained across consecutive seasons |
Frequently Asked Questions
Start Your Kids Outdoor Jacket Development Project
RUINIU supports OEM manufacturing of children's outdoor apparel with EN 14682 compliance, OEKO-TEX certified materials, and waterproof seam-sealed construction. Send your tech pack, reference sample, or product brief and our team will review requirements and respond within 24 hours.
Email: jacket3@ruiniufashion.com | WhatsApp: +86 189 2865 0351 | www.ruiniujacket.com/contact
