Tufafin tukunyar jirgi, wanda kuma aka sani da sutura ko gabaɗaya, tufa ce guda ɗaya da ake sawa don aikace-aikace, kamar kariya daga datti ko rauni, yayin aiki. Yawanci yana rufe dukkan jiki, gami da hannuwa da ƙafafu, kuma galibi ana yin shi da wani abu mai ƙarfi kamar auduga ko polyester. Sunan "Boilersuit" ya fito ne daga asali da ma'aikata ke amfani da su a cikin dakunan tanki, inda suke buƙatar rigar kariya da za ta rufe dukkan jikinsu da kuma hana konewa ko wasu raunuka. A yau, ma'aikata a masana'antu daban-daban, da suka hada da gine-gine, masana'antu, da gyare-gyaren motoci, da ma'aikatan soji da wasu masu sha'awar sha'awa, kamar injiniyoyi ko masu sha'awar motsa jiki.