This custom-developed thermal shirt is built as a modern homage to the hard-wearing base layers once trusted by union workers and outdoorsmen alike. Crafted from a mid-weight 100% cotton knit, it strikes the perfect balance between warmth and breathability, making it ideal for layering or worn on its own. Our signature gradient logo is printed down the sleeves. Mid-weight 100% cotton knit (270GSM) Rib-knit collar and cuffs Beautiful flatlock construction Screenprinted Gradient Logo on sleeves Traditional fit Made in Portugal