A polymeric contact lens comprising a polymeric material that has an oxygen permeability of 55 to 150 Dk units and a water content at equilibrium hydration of from 20 to 55 weight percent and that is the co-polymerization product of a monomer mixture comprising (a) a non-ionic hydrophilic monomer, (b) a poly-(dimethylsiloxy)silyl group-containing monomer, (c) a tris(siloxy)silyl group-containing monomer, (d) a hydrophobic monomer, and (e) a cross-linking agent; wherein (a) is selected from the group consisting of 2-hydroxylethyl methacrylate (HEMA), 2-hydroxylethyl acrylate (2-HEA), glyceryl methacrylate, 3-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 4-hydroxybutyl methacrylate, 4-hydroxybutyl acrylate, N-vinylpyrrolidone, alfa-methylglucoside-6-methacrylate, polyhydroxy sucryl alkyl acrylates, N-(2-hydroxypropyl) methacrylamide, N-methylmethacrylamide, poly(ethyleneglycol) (n) monomethacrylate, poly(C 2 -C 3 alkylene ether) (n) mono C 1 -C 4 alkyl ether acrylate, poly(C 2 -C 3 alkylene ether) (n) mono C 1 -C 4 alkyl ether methacrylate, N-vinyl-N-methyl acetamide, vinylmethyl sulfone, N-acryloylmorpholine, N-methacryloyl morpholine, N-acryloyl-piperidine, N-methacryloylpiperidine, acrylamide, methacrylamide, mono-N-C 1 -C 10 -alkyl acrylamide, di-N-C 1 -C 10 -alkyl acrylamide, mono-N-C 1 -C 10 -alkyl methacrylamide, di-N-C 1 -C 10 -alkyl methacrylamide, mono-N-benzyl acrylamide, di-N-benzyl acrylamide, mono-N-C 1 -benzyl methacrylamide, di-N-benzyl methacrylamide, mono-N- phenyl acrylamide, diN-phenyl acrylamide, mono-N-C 1 -phenyl methacrylamide, di-N-phenyl methacrylamide, wherein "n" has an average value of about 12 to about 160; and wherein (d) is selected from the group consisting of styrene, 2,4,6-trimethylstyrene, t-butyl styrene, 2-vinylnaphthalene, and C 1 -C 10 aliphatic esters of acrylic acid or methacrylic acid. (a) a non-ionic hydrophilic monomer, (b) a poly-(dimethylsiloxy)silyl group-containing monomer, (c) a tris(siloxy)silyl group-containing monomer, (d) a hydrophobic monomer, and (e) a cross-linking agent; wherein (a) is selected from the group consisting of 2-hydroxylethyl methacrylate (HEMA), 2-hydroxylethyl acrylate (2-HEA), glyceryl methacrylate, 3-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 4-hydroxybutyl methacrylate, 4-hydroxybutyl acrylate, N-vinylpyrrolidone, alfa-methylglucoside-6-methacrylate, polyhydroxy sucryl alkyl acrylates, N-(2-hydroxypropyl) methacrylamide, N-methylmethacrylamide, poly(ethyleneglycol) (n) monomethacrylate, poly(C 2 -C 3 alkylene ether) (n) mono C 1 -C 4 alkyl ether acrylate, poly(C 2 -C 3 alkylene ether) (n) mono C 1 -C 4 alkyl ether methacrylate, N-vinyl-N-methyl acetamide, vinylmethyl sulfone, N-acryloylmorpholine, N-methacryloyl morpholine, N-acryloyl-piperidine, N-methacryloylpiperidine, acrylamide, methacrylamide, mono-N-C 1 -C 10 -alkyl acrylamide, di-N-C 1 -C 10 -alkyl acrylamide, mono-N-C 1 -C 10 -alkyl methacrylamide, di-N-C 1 -C 10 -alkyl methacrylamide, mono-N-benzyl acrylamide, di-N-benzyl acrylamide, mono-N-C 1 -benzyl methacrylamide, di-N-benzyl methacrylamide, mono-N- phenyl acrylamide, diN-phenyl acrylamide, mono-N-C 1 -phenyl methacrylamide, di-N-phenyl methacrylamide, wherein "n" has an average value of about 12 to about 160; and wherein (d) is selected from the group consisting of styrene, 2,4,6-trimethylstyrene, t-butyl styrene, 2-vinylnaphthalene, and C 1 -C 10 aliphatic esters of acrylic acid or methacrylic acid.