Powerslide SWELL ULTRA WHITE 110. Elegant efficiency. The Powerslide SWELL is a revolutionary inline skate specially designed for intense fitness training. The Powerslide Swell Ultra White 110 features a reworked shell with flex cuts in the ankle area and RECALL fit with memory foam to provide superior comfort and maximum support. The upper is made out of power knit material with a sleek fit that shapes around your foot seamlessly to fit like a glove. TRINITY mount with 3 fixation points will help you reach new levels of performance. This skate has a light and strong POWERSLIDE Elite 9.6" - 243mm aluminum casted frame, Powerslide SWELL 110mm/86A wheels and Wicked ABEC 9 bearings.