During ITMF annual conference, held in Keqiao Shaoxing, China, on November 4-6, 2023, Santoni and Kelheim Fibres have been awarded for their project New Generation Period Panty: Advanced Machine Technology meets Performance Viscose Fibres. Santoni and Kelheim Fibres have recently teamed up to produce an innovative and sustainable menstrual underwear garment based on advanced machine technology and high-quality performance viscose fibres. The product consists of a soft outer layer and an inlay made from special wood-based fibres from Kelheim. The soft outer layer is produced on Santoni circular knitting machines, which significantly reduce the amount of cutting waste or even allow production with zero-waste. The Santoni XT-Machine, originally developed for the footwear market, is used for the functional inlay of the period panty. This unique machine allows the production of several layers with different yarns and knitting structures. This enables all the layers of the inlay – the absorption and distribution layer ADL, the absorbent core, and the back layer – to be knitted in a single tube. This reduces production time and costs and enables zero-waste production. The result is a sustainable and high-performance product that combines comfort and functionality.