The invention relates to a garment (1), especially to a sports garment, comprising a substrate (2) which covers a part of the body of the wearer of the garment (1). To provide a garment of the generic type which has good thermal insulation properties and which is especially suitable for sports the invention proposes that the substrate (2) is at least partially designed as an at least two-layer arrangement, wherein an inner layer (3) is facing the body of the wearer and an outer layer (4) is delimiting the outside of the garment (1), wherein the two layers (3, 4) form a pocket (5) which is filled with a filling material (6) and wherein the filling material (6) are at least partially plastic particles which are arranged loosely in the pocket (5).