Brooks - Adrenaline GTS 21. Color Hushed Violet/Alloy/Copper. Low Stock. On sale for $91.00. MSRP $130.00.. 4.3 out of 5 stars1 left in stockBrand NameBrooksProduct NameAdrenaline GTS 21ColorHushed Violet/Alloy/CopperPrice$91.00MSRP: $130.00