Yadudduka na iska wani nau'i ne na kayan taimako na yadi. An jiƙa masana'anta auduga a cikin maganin ruwa mai sinadarai. Bayan an jiƙa, an rufe saman masana'anta da ƙarin gashin gashi marasa adadi. Waɗancan gashin gashi masu kyau na iya samar da iska mai siriri sosai a saman masana'anta. Wani kuma shi ne cewa an dinka yadudduka daban-daban guda biyu tare, kuma ratar da ke tsakiyar kuma ana kiranta da iska Layer. The raw kayan na iska Layer hada da polyester, polyester spandex, polyester auduga spandex, da dai sauransu Air Layer masana'anta ne mafi kuma mafi ƙaunar da masu saye a duk faɗin duniya. Kamar sanwici raga, ana amfani da shi a cikin adadi mai yawa na kaya