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Brave Princess Kate Becomes First Mother in History to Wear All White to Playdate

When it comes to parent playdate fashions, the rules are simple: 1. keep it comfy; 2. keep it simple; 3. for the love of graham crackers and juice boxes, NEVER wear white.

Princess Kate, in a bold maneuver only a royal mom would attempt to pull off, flouted the rules and went with an all-white look for the family\'s much-anticipated playdate in Canada on Thursday.

While chasing nearly 17-month-old balloon-loving Princess Charlotte and 3-year-old Prince George, Kate opted for See by Chloé\'s pointelle-knit cotton-blend dress, which retails for $460.

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Princess Kate holding Princess Charlotte, Prince George, being held by Prince William at a children\'s party for military families during the royal tour of Canada.

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It\'s a departure from the red motif she\'s been wearing throughout the family\'s week-long tour of western Canada.

Lovely moment between #PrincessCharlotte and a bunny - she looks like the cat that got the cream! #RoyalVisitCanada #RoyalTourCanada pic.twitter.com/l6Zu3hYF1D

And in true princess style, it appears neither Kate nor Charlotte so much as smudged their picture-perfect looks – even with bunnies and dogs and bubbles and a big brother wielding a water gun. Which means today might go down as Kate\'s greatest fashion feat yet.

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