Rockport Works - More Energy RK6640. Color Brown. On sale for $154.99. MSRP $185.00.. 4.0 out of 5 starsAdd to favorites. 0 people have favorited thisBrand NameRockport WorksProduct NameMore Energy RK6640GenderMen'sColorBrownPrice$154.99MSRP: $185.00Rating4Rated 4 stars out of 5(29)