Provided is resin composition in which staining is suppressed, said resin composition including: an ethylene vinyl alcohol-based copolymer (A) that has an ethylene structural unit content of 20-60mol%; an ethylene vinyl acetate-based copolymer saponified product (B) that has an ethylene structural unit content of 70mol% or greater; and a sorbic acid ester (C), wherein the sorbic acid ester (C) content is 0.00001-10ppm by weight of the resin composition.本發明提供一種樹脂組成物作為著色受到抑制之樹脂組成物,係含有乙烯結構單元的含量為20~60莫耳%之乙烯-乙烯醇系共聚物(A)、乙烯結構單元的含量為70莫耳%以上之乙烯-乙酸乙烯酯系共聚物皂化物(B)及山梨酸酯(C)之樹脂組成物,其中,該山梨酸酯(C)的含量就樹脂組成物每單位重量為0.00001~10ppm。