Future Spandex: By and large, this class of garmentage is averted. There are a very few specialist exceptions – skinsuits, which have to be skin-tight in order to work; body gloves, which are mocap and environmental sealing devices for hardshell armor; spray-on protection – but by and large what these things have in common? Being either technical garments, underwear, or both. As main garments, they lack elegance.
Bullet Proof Vest: Mostly averted against bullets – most modern personal weapons put enough kick behind their projectiles that you want hardshell armor with kinetic barriers (see: Armor is Useless, Powered Armor) to save you from those, which is why even the Constabulary uses the equivalent of regular legionary armor just in case. The equivalents, “scale jackets”, and other clothing made from the same materials – usually pharmed spider-silk and related composites – do exist to help deal with shrapnel, knives, needlers, and other lesser hazards.