KNITTED TEXTILE AND METHOD OF FORMING SAME, AS WELL AS ARTICLES OF APPAREL LIKE ARTICLES OF FOOTWEAR INCLUDING A KNITTED TEXTILE

A knitted textile (2) having a first layer (4) including a first yarn (12) with a thermoplastic composition integrally formed with a second layer (6) including a second yarn (14) , the first yarn (12) forming an array of knitted patterns defining voids (8) through the first layer (4) to the second layer (6). The first layer (4) may be heat treated to form a film (24). Treatment of the first layer (4) may change zonal and directional tensile properties of the knitted textile (2). The Poisson's ratio of the knitted textile may be greater than or equal to zero in a first axis and/or a second axis, before and/or after treatment. Articles of apparel, including articles of footwear and garments incorporating the knitted textile, and methods of forming the knitted textiles and articles are disclosed.