Skechers go step marina lace up shoe iconic design and premium materials fuse with innovative goimpulse sensor technology to achieve the ultimate in comfort and style go step marina has a heathered jersey knit fabric upper in a three eye lace up boat shoe with contrast accents fasteninglace up material compositiontextilemeshrubber features high rebound cushioning with responsive feedback combines a proprietary squish component with our exclusive resalyte material goga max tech