Cold Weather Mobility Test

Whether garments built to our patterns preserve the movement range a wearer in a full layer stack needs, and where restriction appears first. Test method: to be confirmed, and likely to combine a defined set of movements performed in a fixed order with measurement at agreed reference points, so that two constructions can be compared on the same movements. Conditions required for a comparison to mean anything: the complete layer composition and the order worn; the garment size and the body dimensions of the wearer, since a mobility result is meaningless without both; the reference points used for measurement and how they are marked; the movement set, the order in which the movements are performed and how far each is taken; whether movement is measured or recorded on video for later assessment; the starting posture and the rest between movements; and the number of wearers tested. Comparing an articulated construction against a plain one requires the same wearer, the same size and the same layer stack, otherwise the difference belongs to the test setup.

A cold weather garment is rejected for restriction more often than for cold. The wearer cannot reach a control, cannot kneel to work, cannot shoulder equipment, and the garment is left behind or cut down, which is the worst possible outcome for a buyer who has paid for insulation. Restriction is also the failure buyers find hardest to argue with a supplier, because it is not visible in a measurement chart and only shows up when the whole stack is worn together. Articulation, gusseting and layer allowance all add pattern work and cutting cost, and a mobility comparison is what allows those costs to be justified with evidence instead of a claim about fit.