The four items in the top photo are thin and very soft underwear from Belle Maison, size 50. The six items below are from Uniqlo, size 50-60. These were purchased urgently for the NICU and were mainly used during hospitalization. Although they weren't used as the primary set afterward, there is some wear and wrinkling due to tumble drying. Please consider this before purchasing. Although they are used items, there is no severe staining. There may be some shrinkage due to washing and drying, but they were easily wearable from birth (around 2000g) until about 3 months old. They could still be worn at 6 months. Both are durable. Please feel free to contact me regarding the price.