Energy Rib Knit Fabric is a vertical rib fabric that helps hide every figure flaw. High denier Lycra® and rib construction give comfort-compression to shape and slim, with a feel terrific, ultra soft-touch nylon. Every pair comes with a new Wunderbreech base layer that smoothes, shapes and conceals what's underneath. Control starts with perforated deerskin for ultimate grip, stretch and breathability. Flexibility galore in segmented full seat panels that are anatomically engineered for maximum joint articulation. Gusseted crotch that's leather-free and seamless for comfort and freedom of motion. Flattering silhouette achieved with hidden, powermesh "ab" panel for core awareness and support while enhancing your profile. Comfort reigns with a breathable, powermesh at the inner calf, reducing bulk and minimizing heat buildup inside boots. Support surrounds with FITS Body Sculpt Technology supporting your major muscle groups, slimming your contours and reducing muscle vibration. Available in: XS(0-2), S(4-6), M(8-10), L(12-14), XL(16-18). White only.