How should the waistband of training shorts be checked before approval?

How should the waistband of training shorts be checked before approval?

Check the waistband for secure fit, comfortable extension and recovery on the finished shorts sample. Review elastic width, joining method, drawcord routing and the relationship between the waistband and body fabric. Assess rolling, twisting and pressure during sitting and squatting, then review the result after the agreed wash treatment. Record the approved elastic and construction references.

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