It's hard to believe reality star Kristin Cavallari had her first child just a few weeks ago! She's already showing off her slim post baby bod and she recently sported a $517.90 stylish outfit while spending the day with her new son Camden Jack.

OK! GALLERY: KRISTIN CAVALLARI SHOWS OFF HER POST-BABY BODY IN WHITE SKINNY JEANS

We thought she looked great and had to know where to get her ensemble so we asked our go-to girl, Shauna Miller of PennyChic.com, whose mission it is to style women in fab but affordable clothes, to find out all the details of Kristin's look.

The 25-year-old is wearing a Veda skirt which retails for $330, Zara shoes for $89.90 and BCBG top which is $98.

OK! GALLERY: JESSICA SIMPSON SHOWS OFF HER POST-BABY BODY OUT IN NYC WITH ERIC JOHNSON

Shauna shows us how to get this look for just $76.09!

1. Wet Seal Long Sleeve Lace Top $10.50

2. Target  Hoop Earrings $12.99

3. Forever21 Faux Leather Skirt $15.80

4. Forever21 Rhinestone Platform Heels $36.80

For more info about Shauna, check out her blog at Pennychic.com.