Making a Faramir style ranger cuirass for a costume, my first big leather project. The pattern went togather fine but I lined it with linen and now the whole thing climbs up every time I raise my arms. It sits perfect standing still, then two minutes of walking around and the bottom hem is somewhere near my ribs. I hand stitched the lining in around the edges and tacked it at the seams, wondering if that's the problem. Should the lining be attached at all, or whould it slide better if it was only held at the top edge? Also not sure how much of this is just the side lacing being too snug across the chest.
Anyone dealt with this on a similar build? I'd rather fix it now than after I add the shoulder straps and whatever padding goes underneath.