Absolutely love these bibs! They are thick, but even in the summer they are fine as long as baby is dressed properly for the heat. Great absorbency and cute designs. Have had so many people ask about these! They are also a great size (other bandana bibs I bought were much smaller) and have saved my son's neck and chest from drool rashes, as well as kept his shirts dry. There are two buttons which allows for adjustable sizing as well. Highly recommended!