Sweating connects skin–fabric grip sites

Heat acclimation may make wet skin vulnerable to clothing damage in middle age. Sweating may connect skin-fabric grip sites across a rubbing zone. At matched hydration, temperature, contact area and frictional work, that route could concentrate shear, a sideways force, and leave residual deformation. The test splits the route into isolated grip islands. Immediate fall in deformation would support the hypothesis. Persistence with matched contact networks and maps, alongside abnormal maturation of corneocytes, outermost skin cells, would be consistent with a rival mechanism involving cellular protein maintenance and corneocyte maturation. Testing needs measurements of local movement and deformation while fabric evaporation varies independently of contact geometry.