Vimmia X CRK Biker Short in Black. - size M (also in L) Vimmia X CRK Biker Short in Black. - size M (also in L) Self: 59% polyamide 41% lycraCombo: 80% nylon 20% spandex. Slim compression fit and ultra smooth fabric. Imported. VIMR-WF3. 92022CRK. Vimmia is a collection of luxe performance activewear styles developed and designed for the woman who balances life, love, family, fitness and time for her self.