I get asked what the appropriate dress code is for afternoon tea and I always recommend smart casual at a minimum. Smart casual is polished and put together but comfortable. Wear neat, clean clothing How To Dress For Afternoon Tea: An Etiquette Guide What to wear for afternoon tea in London. , Tom Brown at The Capital Rowan Row Facebook London Times womens Linen Blend A Line Dress, 10 Walmart.com Top Five Afternoon Teas in London MyMetropole