Plus saddle for an active seating position. The unique PLUS channel in conjunction with the anatomical cutout ensures optimal pressure distribution. Size: 185 x 265 mm (W x L) for sit bone distances greater than 135 mm. Also available: 170 x 265 mm for sit bone distances less than 135 mm. Unisex design. Color: black. Weight: 460 g. Stainless steel rails with adjustment scale. Polypropylene (PP) shell and impact absorption for added protection. Triple-density foam: high-density EVA material and moderately dense PU material topped with soft memory foam. Durable synthetic upper material. Waterproof.