A soft contact lens, comprising: a non-silicone hydrogel lens body, wherein the non-silicone hydrogel lens body is composed of a hydrogel material which is free of silicone and comprises at least 50% by mole of repeating units of at least one hydroxyl-containing vinylic monomer, wherein either said at least one hydroxyl-containing vinylic monomer is selected from the group consisting of hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, glycerol (meth)acrylate, N-2-hydroxyethyl (meth)acrylamide, N-2-hydroxypropyl (meth)acrylamide, N-3-hydroxypropyl (meth)acrylamide, N,N-bis(hydroxyethyl) (meth)acrylamide, N-2,3-dihydroxypropyl (meth)acrylamide, N -tris(hydroxymethyl)methyl (meth)acrylamide, vinyl alcohol, allyl alcohol, and combinations thereof; or said hydrogel material is a crosslinked product of a water-soluble, actinically-crosslinkable polyvinyl alcohol prepolymer which comprises: (a) at least 60% by mole of repeating units of vinyl alcohol, and (b) repeating units of formula, in which: R 3 is hydrogen or a C 1 -C 6 alkyl group, R 4 is a C 1 -C 6 alkylene divalent radical, R 5 is hydrogen or C 1 -C 6 alkyl, R 6 is an ethylenically unsaturated group of or in which q1 and q2 independently of each another are zero or one, and R 7 and R 8 independently of one another are a C 2 -C 8 alkylene divalent radical, R 9 is C 2 -C 8 alkenyl; and a hydrogel coating thereon, wherein the hydrogel coating has a thickness of from 0.1 μm to 20 μm and comprises an anchoring layer of a first polymeric material having first reactive functional groups and a hydrogel layer derived from a second polymeric material having second reactive functional groups, wherein the hydrogel layer is covalently attached onto the anchor layer through linkages each formed between one first reactive functional group and one second reactive functional group, wherein the soft contact lens has a surface lubricity better than the lubricity of the non-silicone hydrogel lens body and has a friction rating of 2 or lower after 7 cycles of manual rubbing as determined as described in Example 1, a water content of from 10% to 85% by weight and an elastic modulus of from 0.2 MPa to 1.5 MPa when being fully hydrated. a non-silicone hydrogel lens body, wherein the non-silicone hydrogel lens body is composed of a hydrogel material which is free of silicone and comprises at least 50% by mole of repeating units of at least one hydroxyl-containing vinylic monomer, wherein either said at least one hydroxyl-containing vinylic monomer is selected from the group consisting of hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, glycerol (meth)acrylate, N-2-hydroxyethyl (meth)acrylamide, N-2-hydroxypropyl (meth)acrylamide, N-3-hydroxypropyl (meth)acrylamide, N,N-bis(hydroxyethyl) (meth)acrylamide, N-2,3-dihydroxypropyl (meth)acrylamide, N -tris(hydroxymethyl)methyl (meth)acrylamide, vinyl alcohol, allyl alcohol, and combinations thereof; or said hydrogel material is a crosslinked product of a water-soluble, actinically-crosslinkable polyvinyl alcohol prepolymer which comprises: (a) at least 60% by mole of repeating units of vinyl alcohol, and (b) repeating units of formula, in which: R 3 is hydrogen or a C 1 -C 6 alkyl group, R 4 is a C 1 -C 6 alkylene divalent radical, R 5 is hydrogen or C 1 -C 6 alkyl, R 6 is an ethylenically unsaturated group of or in which q1 and q2 independently of each another are zero or one, and R 7 and R 8 independently of one another are a C 2 -C 8 alkylene divalent radical, R 9 is C 2 -C 8 alkenyl; and said at least one hydroxyl-containing vinylic monomer is selected from the group consisting of hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, glycerol (meth)acrylate, N-2-hydroxyethyl (meth)acrylamide, N-2-hydroxypropyl (meth)acrylamide, N-3-hydroxypropyl (meth)acrylamide, N,N-bis(hydroxyethyl) (meth)acrylamide, N-2,3-dihydroxypropyl (meth)acrylamide, N -tris(hydroxymethyl)methyl (meth)acrylamide, vinyl alcohol, allyl alcohol, and combinations thereof; or said hydrogel material is a crosslinked product of a water-soluble, actinically-crosslinkable polyvinyl alcohol prepolymer which comprises: (a) at least 60% by mole of repeating units of vinyl alcohol, and (b) repeating units of formula, in which: R 3 is hydrogen or a C 1 -C 6 alkyl group, R 4 is a C 1 -C 6 alkylene divalent radical, R 5 is hydrogen or C 1 -C 6 alkyl, R 6 is an ethylenically unsaturated group of or in which q1 and q2 independently of each another are zero or one, and R 7 and R 8 independently of one another are a C 2 -C 8 alkylene divalent radical, R 9 is C 2 -C 8 alkenyl; and R 3 is hydrogen or a C 1 -C 6 alkyl group, R 4 is a C 1 -C 6 alkylene divalent radical, R 5 is hydrogen or C 1 -C 6 alkyl, R 6 is an ethylenically unsaturated group of or in which q1 and q2 independently of each another are zero or one, and R 7 and R 8 independently of one another are a C 2 -C 8 alkylene divalent radical, R 9 is C 2 -C 8 alkenyl; and a hydrogel coating thereon, wherein the hydrogel coating has a thickness of from 0.1 μm to 20 μm and comprises an anchoring layer of a first polymeric material having first reactive functional groups and a hydrogel layer derived from a second polymeric material having second reactive functional groups, wherein the hydrogel layer is covalently attached onto the anchor layer through linkages each formed between one first reactive functional group and one second reactive functional group,