adidas by Stella McCartney - TruePurpose Power Impact Training Medium Support Bra IQ4521. Color Tech Mineral. On sale for $70.00. MSRP $100.00.. Brand Nameadidas by Stella McCartneyProduct NameTruePurpose Power Impact Training Medium Support Bra IQ4521GenderWomen'sColorTech MineralPrice$70.00MSRP: $100.00Rating