S2800 Silicone Watch Strap silicon watch straps are extremely flexible, which makes silicon watch bands super comfortable to wear. S2800 is available in white, black, black with yellow stitching, black with grey stitching, black with red stitching, black with blue stitching, yellow, grey, orange, red, blue, navy blue, blue with red stitching & green. Available lug sizes include 20mm, 22mm, 24mm & 26mm.