The present invention provides a flexible tube used for an endoscope and the like; an endoscopic medical apparatus that uses the flexible tube; and a resin composition for top coat layer used for the flexible tube. The flexible tube includes a flexible tube substrate that has a cylindrical shape and flexibility; a resin layer that covers the flexible tube substrate; and a top coat layer that covers the resin layer, in which the top coat layer contains a polymer compound derived from monomers including the following A to C. [A: hydroxyl group-free acrylate having a molecular weight equal to or greater than 110 €ƒ€ƒ€ƒ100 parts by mass] [B: hydroxyl group-free acrylate having a molecular weight equal to or greater than 80 and less than 110 €ƒ€ƒ€ƒ10 parts by mass to 200 parts by mass] [C: hydroxyalkyl acrylate €ƒ€ƒ€ƒ1 part by mass to 60 parts by mass]