for my shoulders, i sewed velcro to my jacket, and then glued velcro to the armor pieces. i did the same thing to the thigh pieces. for my belt, i wove a webbed velcro belt into some slots in the crotch and butt plate. then for the two side belt pieces, i glued velcro to them, and sandwiched the velcro belt between them and the velcro on my pants. not only does it keep the entire armored belt lined up evenly, but it helps hold up the pants since the thighs weigh it down a bit.