I bought these at the same store last winter. Images 2-11 show the product information. All are 100% cotton, and half are definitely organic cotton. I've gathered only the combination outfits. All 12 items in the first image are the products. Separate undershirts are also sold. I only used these during the newborn period. The 12th and 14th items are the same, but there appears to be a stain on the left shoulder of one. Otherwise, they looked to be in relatively good condition. I am a layperson when it comes to inspection, so please forgive any oversights. There are no noticeable stains, and since they include organic cotton, they are fluffy, so they seem like they can still be used. I washed them in a laundry net, only with baby clothes. Would these be suitable to wear under clothes this winter? #twins #newborn #combination outfits #undershirts #bulk sale