"The time has come, my friends. Winter is here and the HeatTech is OUT. I'm obsessed with Uniqlo's superthin but superwarm layering items and these extra warm Uniqlo Women Heattech Ultra Warm Thermal Leggings (£20) are my go-to every year. Bonus tip: I'm 7 months pregnant and they still fit. What wizardry is this?!" – GC