MICHAEL Michael Kors - Porter Flex Pump. Color Silver. On sale for $43.50. MSRP $145.00.. 2.8 out of 5 starsBrand NameMICHAEL Michael KorsProduct NamePorter Flex PumpGenderWomen'sColorSilverPrice$43.50MSRP: $145.00Rating3Rated 3 stars out of 5(5)