Knitting method

A method to combine on a double selection circular knitting machine, in a single fabric having a first outer layer and a second outer layer, an air circulating construction that connects the outer layers combined with a double-knit construction, the air circulating construction comprising ventilation holes, the method comprising:

• knitting the first outer layer of the fabric with a first yarn by means of a first selection of needles;
• knitting the second outer layer of the fabric with a second yarn by means of a second selection of needles;
• introducing a connection yarn into the fabric with a third selection of needles;
• and
• adding a lay-in yarn or a filler yarn between the first outer layer and the second outer layer,
• wherein:
• the connection yarn connects the outer layers in the air circulating construction and floats and/or is knitted to only one of the outer layers in the double-knit construction;
• and
• the lay-in yarn or the filler yarn lies loose between the outer layers in the double-knit construction and is grouped through the connection yarn in the air circulating construction by tuck or tuck/miss combinations, such that no lay-in yarns or filler yarns lay inside the ventilation holes of the air circulating construction.