Chaco - ZX/2® Classic. Color Boost Black. On sale for $69.99. MSRP $100.00.. 4.1 out of 5 stars+3Brand NameChacoProduct NameZX/2® ClassicGenderWomen'sColorBoost BlackPrice$69.99MSRP: $100.00Rating4Rated 4 stars out of 5(293)