Thick and opaque are related but not identical: dye can make fabric less transparent without making it sufficiently robust as a legally valid covering.
Thus the label “sock” does not decide the rule. Actual material, thickness, coverage and durability matter when applying the juristic criteria to modern footwear.
Opening interactive controls...
Wiping Over Khuffs: Conditions, Duration, Nullifiers, and Splints
Thick and opaque are related but not identical: dye can make fabric less transparent without making it sufficiently robust as a legally valid covering.
Thus the label “sock” does not decide the rule. Actual material, thickness, coverage and durability matter when applying the juristic criteria to modern footwear.