| 1 | Fiber Composition | Use lace with a durable fiber blend, commonly nylon or polyester combined with elastane for stretch and recovery. | Review the fiber-content label and confirm whether the elastic components are separately identified. | Request a material specification sheet and verify that the composition matches the approved sample. | High |
| 2 | Lace Quality and Coverage | The lace should have an even pattern, stable net structure, and sufficient opacity for the intended market. | Inspect the fabric against light for holes, uneven motifs, broken threads, skipped stitches, or visibly thin areas. | Approve a fabric swatch before sampling and define acceptable limits for pattern variation and defects. | High |
| 3 | Stretch and Recovery | The lace and band should stretch enough for movement and return close to their original dimensions after use. | Measure the sample before and after repeated stretching; look for permanent distortion, rippling, or loose edges. | Compare samples after several stretch-and-release cycles and record dimensional changes in the inspection report. | High |
| 4 | Cup and Band Fit | The center front should lie flat, the cups should contain the bust without gaping, and the band should sit level. | Conduct fittings across the target size range using a standardized fit model or mannequin. | Test at least one core size and the adjacent size range before confirming the production pattern. | High |
| 5 | Strap and Adjuster Function | Straps should adjust smoothly, remain secure, and provide adequate support without cutting into the shoulders. | Check adjuster movement, strap width, attachment strength, and whether hardware creates pressure points. | Perform repeated adjustment and pull tests on samples, especially for extended-size products. | Medium |
| 6 | Seams and Edge Finishing | Seams should be flat and secure, while neckline and underarm edges should not fray or create excessive bulk. | Inspect stitch density, seam alignment, thread tails, bar-tacks, elastic joins, and folded or bound edges. | Set a written workmanship standard and use random final inspections for each production lot. | High |
| 7 | Skin Comfort | The garment should feel smooth during extended wear, with soft lining and elastic that does not cause excessive pressure. | Check the reverse side for rough lace points, exposed seams, abrasive labels, and stiff or uncovered elastic. | Carry out a wear trial lasting several hours and collect feedback from users with different body shapes. | High |
| 8 | Colorfastness and Care | Color should remain stable under the care method stated on the label, and trims should not bleed onto adjacent materials. | Review care instructions and test color transfer, washing, perspiration, and light exposure as appropriate for the market. | Request test evidence or conduct independent testing before placing a large order. | Medium |
| 9 | Size Grading and Measurement | Each size should follow a consistent measurement chart, with grading that maintains support and proportions across sizes. | Measure band, cup depth, strap placement, center height, and underwire or side-support dimensions against the approved specification. | Use a tolerance sheet and approve a pre-production sample for every important size group. | High |
| 10 | Compliance and Packaging | Labels, fiber information, care instructions, country-of-origin details, and packaging should meet the destination-market requirements. | Check labeling language, safety information, packaging cleanliness, carton strength, and documentation required for import. | Confirm destination-country rules with a qualified compliance specialist before shipment. | High |