Footwear, insoles, inserts, kits and methods effective for acclimating auser's footto a different heel-toe ramp and/or foot strike pattern are provided.Footwear, insoles,inserts and kits of the present disclosure have a region of adjustablethickness whichallows the user to gradually change the heel-toe ramp of the user's foot,and/or graduallyadapt to a new foot-strike pattern. Regions of adjustable thickness mayinclude alayered pad, inserts of varying thicknesses which may be used with thefootwear orinsert, or a material having a thickness which changes with the rate ofapplied force.
