Kate Middleton Wears Philosophy di Lorenzo Serafini Blazer

When you're climbing in and out of a plane, you want to wear a sensible outfit. Kate Middleton did just that when she arrived at an air cadet center wearing a Philosophy di Lorenzo twill blazer and black pants complete with matching black boots and gloves. The casual ensemble was bright and easy for her to move in as she stepped on to the wings of a plane.

Coincidentally, the duchess of Cambridge also appeared to give a nod to Valentine's Day with the red in her outerwear and her heart-shaped earrings by Kiki McDonough Lauren. The blazer featured double-breasted gold button details and was a fresh alternative to a holiday dress, which wouldn't have been as suitable for Kate's daytime activities. Read on for a closer look at her blazer and then shop the exact one below.