This Comfort Technology Knee Boot from Servus offers a unique scolloped top-line design to accommodate flexing in the calf area to reduce irritation. The unique Trac10 outsole design enhances slip resistance and stability underfoot. In addition, the contour heel cup molding reduces heel slippage. All-day comfort. Sleek and contemporary, the Servus CT Knee Boot is a great choice for general conditions. Economy and value in the same boot.