adidas by Stella McCartney - TruePurpose Power Impact Training Medium Support Bra IQ4521. Color Tech Mineral. On sale for $62.55. MSRP $100.00.. Brand Nameadidas by Stella McCartneyProduct NameTruePurpose Power Impact Training Medium Support Bra IQ4521GenderWomen'sColorTech MineralPrice$62.55MSRP: $100.00Rating