Kristin Cavallari's son only wears organic clothes.

The 26-year-old former reality TV star is careful about what she exposes her eight-month-old son Camden to and admitted having him has made her more conscious about her own clothes.

"I don't want to put anything on him which has chemicals, and so everything is organic. It also makes you think about what you're putting on your own body. If you don't want it on your baby, why would you want it on yourself," she told Coco Eco magazine.

Kristin - who is engaged to Camden's father Jay Cutler - recently insisted motherhood is the "most rewarding job" she's ever had: "There are tough moments but it's the most rewarding job I've ever had. Cam is seven months now and every day is so exciting. He is such a sweet and happy guy and makes every day wonderful. Jay is the best dad, I've had to travel for work in the past few months and Jay has been home with the baby. We don't have a nanny, he is such a hands on dad. One of his sisters has a one year old boy so that has helped."