Rockport Works - More Energy RK6640. Color Brown. On sale for $159.95. MSRP $185.00.. 3.9 out of 5 starsBrand NameRockport WorksProduct NameMore Energy RK6640GenderMen'sColorBrownPrice$159.95MSRP: $185.00Rating4Rated 4 stars out of 5(28)