Kate Middleton Saves Your Biggest Go-To Staple For Special Occasions Only

Though Kate's top was sporty, she added a delicate touch with neutral wedges.

Kate completed her olive denim with her favorite Penelope Chilvers boots and a vest to give off rustic vibes.

Kate chose to highlight the true blue shade of her denim with a boat-neck top and Sebago shoes.

Kate tried the same combination in a white striped top, accessorizing with a pair of sunglasses.

Kate went all-out in a navy-blue look, but broke up her separates with a striped tee.

Kate chose a boho-style printed blouse and a crisp blazer added structure. She added pumps and jeans in darker shades.

Kate matched her rainboots to a military parka and newsboy cap in the snow.

Kate worked a new blue blazer, this time with gold hardware.

Kate wore royal-blue Zara jeans with cork wedges darker in shade, adding a touch of brightness with a white top.

Kate's brown leather coat and work boots made her outfit appear functional.

Kate styled her flared denim with a cowboy hat, suede boots, and a leather belt to attend the Calgary Stampede in Canada.

Kate made sure her outfit appeared feminine with a white ruffled blouse.

Kate tucked away her olive button-down into belted, cropped denim, finishing the look with her sapphire engagement ring and Sebago shoes.

Kate went the super casual route in boat shoes and a windbreaker.

Kate made a dash in her denim, heeled leather boots, and a black blazer.

Kate added a preppy touch to her simple sweater with the addition of a flannel, opting for brown accessories.

In 2009, a dainty yellow camisole and leather jacket pairing was chic enough for the outdoors.

Before Kate took on her royal duties, she showed us that sometimes it's OK to go for the classic '90s pairing: a lace tank and boot-cut jeans.