هر جفت یا با مشخصات فنی منطبق است، یا هرگز از کارخانه خارج نمی‌شود.

Flex resistance

Upper and sole unit cycled to detect cracking and bond fatigue.

Bond strength

Peel testing on the sole-to-upper joint against the approved threshold.

Abrasion

Outsole compound wear measured under load.

Colour fastness

Rub and light exposure testing on finished uppers.

Dimensional check

Graded sizes measured against the released last specification.

Metal detection

Every pair passes detection before cartonisation.