I try to let Hazel roll around without her diaper as often as possible so that she can air out. Can you imagine having to wear a diaper 24/7? Just the thought makes me feel gross. Also, sun exposure is good for Vitamin D production and a total cure-all for diaper rash which Hazel has luckily never had. She loves to roll around in the breeze with her bare butt up in the air, and I love to watch her enjoy herself doing it! She could lay in the grass, screeching at the trees all afternoon.