Founder: "The fibre is temperature-regulating. Warm when it's cold, cool when it's hot, on its own." Investor 1: "Battery?" Founder: "None. The structure traps air and lets moisture out as vapour." Investor 2: "Flame rating." Founder: "Won't ignite below about 570 degrees. No treatment. It puts itself out and leaves no melt." Investor 1: "Odour." Founder: "Antibacterial. Wear it for a week, hang it up, it's fine." Investor 3: "Wet performance." Founder: "Holds a third of its weight in water before it feels damp, and keeps you warm while it does." Investor 2: "End of life." Founder: "Bury it. Soil in a year or two. It's nitrogen." Investor 1: "Production." Founder: "The unit grows the fibre on its own body over twelve months, outdoors, on grass. We harvest it in about two minutes. The unit walks off and starts again." Investor 3: "Walks." Founder: "Also lambs." Investor 2: "Raw material cost?" Founder: "Rain." Investor 1: "Who's the competitor?" Founder: "Polyester. Made from crude oil, melts at about 250 degrees, sheds plastic into the sea every wash, and lasts centuries in a hole." Investor 2: "And yours is cheaper?" Founder: "British farmers currently get about the cost of the shearing for it. Some burn it in the yard." Investor 3: "This is wool." Founder: "This is wool." Investor 1: "Why are we only hearing about it now?" Founder: "You've been wearing the competitor for forty years. It had a better marketing budget and no sheep."