What to Wear to Afternoon Tea: 9 Outfits That Embody Elegance Who What Wear What is the dress code for afternoon tea at the Waldorf Astoria in Washington, DC? 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 What to wear to high tea: Dress code, attires + complete guide Winter white outfit, How to Dress for a Winter Tea Party Afternoon Tea Dress