Introduction
In Part 1 of our series on Activewear Size Grading, we covered the fundamentals of creating size charts and grading rules for activewear. Part 2 delves deeper into the practical applications of size grading in OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) partnerships, the role of MOQ (Minimum Order Quantity), and how quality control (QC) ensures that graded garments meet specifications. Whether you are a brand owner or a manufacturer, understanding these elements is critical to delivering consistent fit and reducing returns.
Key Factors in Activewear Size Grading
Fabric Stretch and Recovery
Activewear fabrics often contain elastane or spandex, which stretch and recover. Grading must account for the fabric's stretch percentage. For instance, a fabric with 20% stretch may require less incremental growth between sizes compared to a fabric with 10% stretch. The grade rules should be adjusted to maintain the intended compression or support across the size range.
Garment Silhouette and Function
Different activewear styles (leggings, sports bras, tops) have unique grading requirements. Leggings often need more grade in the hip and thigh, while sports bras require precise grading in the underband and cup. The function—whether for yoga, running, or weightlifting—also dictates fit preferences. Compression garments grade differently than relaxed-fit pieces.
Industry Standards and Best Practices
Standard Grade Increments
While there is no universal standard, common grade increments for women's activewear are:
For men's, similar increments apply but with broader chest and shoulder grading.
Size Labeling and Consistency
Consistency across styles is vital. A size medium in one leggings style should fit similarly to a medium in another. Brands like luckyyoga maintain strict grade rules to ensure that customers can rely on their size across the product line. This reduces confusion and returns.
OEM and ODM Manufacturing Considerations
OEM: Custom Grading for Your Brand
When working with an OEM manufacturer, you provide the base size (often size M) and grade rules. The manufacturer then produces the full size run. It's essential to communicate your target fit and provide detailed specs. luckyyoga, as an OEM partner, offers expertise in adjusting grade rules for specific fabrics and styles.
ODM: Leveraging Existing Grade Rules
ODM manufacturers have pre-developed styles with established grade rules. This can be cost-effective, but you must ensure the grade aligns with your target market. For example, Asian sizing often grades differently from Western sizing. If your ODM partner uses Asian grade rules, you may need to adjust the base size or request custom grading.
MOQ and Its Impact on Size Grading
Minimum Order Quantity per Size
MOQ typically applies per style and color, but some manufacturers also impose per-size minimums. This affects how you distribute sizes in your order. For instance, if MOQ is 300 pieces per style, you might order 50 units per size (XS-XXL). However, if per-size MOQ is 100, you must order at least 100 of each size, which may not reflect actual demand.
Balancing Inventory and Fit Options
To optimize MOQ, consider offering fewer sizes initially or using a core size range (S-XL) before expanding. Some brands use pre-orders to gauge demand. luckyyoga offers flexible MOQ options, allowing brands to start with smaller quantities per size and scale up based on sales data.
Quality Control in Size Grading
First Article Inspection (FAI)
Before bulk production, a sample of each size is checked against the spec sheet. Measurements are taken at critical points: bust, waist, hip, inseam, sleeve length, and across shoulders. Tolerance limits (e.g., ±0.5 cm) are applied. Any deviations trigger adjustments to the grading.
Inline and Final QC
During production, random samples from each size are inspected. Final QC involves checking a statistically significant number of garments per size. Common issues include inconsistent seam allowances, fabric shrinkage affecting grade, and mislabeled sizes. A robust QC process catches these before shipment.
Common Mistakes in Activewear Size Grading
How luckyyoga Ensures Consistent Size Grading
luckyyoga combines advanced pattern grading software with hands-on fit testing. Each new style undergoes a fit session with models representing the target size range. Grade rules are then refined based on feedback. Additionally, luckyyoga maintains a database of grade rules for different fabric types, ensuring consistency across collections. Their QC team uses 3D body scanning to validate measurements, reducing human error.
FAQ
1. What is the difference between size grading and size chart?
Size grading is the process of creating a range of sizes from a base pattern by increasing or decreasing measurements. A size chart is a table that lists the body measurements for each size. Grading produces the actual patterns; the size chart guides customers.
2. How does fabric stretch affect grading?
Fabrics with high stretch require less grade increments because the fabric can accommodate more body variation. For example, a 4-way stretch fabric may only need 0.5 inch grade between sizes, while a rigid fabric needs 1-2 inches.
3. Can I use the same grade rules for all activewear styles?
No. Different styles (leggings, bras, tops) have different fit requirements. Even within leggings, high-waisted vs. low-rise need adjusted grading. It's best to develop grade rules per style category.
4. What MOQ does luckyyoga offer for custom grading?
luckyyoga offers flexible MOQ starting from 100 pieces per style, with per-size minimums negotiable. They encourage small-batch production for testing before scaling.
5. How does quality control verify size grading accuracy?
QC involves measuring samples from each size against the spec sheet, using calibrated tools. They also conduct fit tests on live models. Any size that deviates beyond tolerance is flagged for correction.
Conclusion
Activewear size grading is a nuanced process that requires understanding of fabric, fit, and manufacturing constraints. By partnering with an experienced manufacturer like luckyyoga, brands can ensure consistent sizing across their product line, reduce returns, and build customer loyalty. Whether you choose OEM or ODM, pay close attention to MOQ and quality control to achieve the best results.
