Long autumn/winter nightwear. Cool fabric, ideal for in-between seasons or sleeping with air conditioning. The 4-piece Kit consists of 2 pairs of pants + 2 shirts = 2 sets. Different color and print sets will be sent. These children's pajamas for girls are soft, durable, and comfortable, ideal for the transitional seasons and winter. 2 long-sleeved shirts made from 100% cotton knit fabric. 2 pairs of long pants made from 100% cotton knit fabric with elastic waistband for a better fit and comfort. To choose the right size, you should look at the size chart (last photo) and compare the measurements with a garment the child is already wearing. Size is not related to age. ATTENTION - IMPORTANT! • There is no option to choose the models. • The models sent will be assorted according to stock availability. • The factory changes the print/color combination with each shipment. • The photos in the ad are for illustrative purposes only, showing patterns/colors. ATTENTION: We receive new items every week, so we may send different sets than those shown in the photos, but always with the same level of quality and beauty. WASHING: Because the fabric is 100% cotton, it's natural for it to shrink a little after the first wash. We recommend washing separately and always drying in the shade to maintain the vibrant colors of the prints. SIZE: Check the size chart. Size is not related to age. Actual product photo. Here is a suggestion for choosing the size: Size 1 = fits 6 months to 1 year Size 2 = fits 1 to 2 years old Size 3 = fits 2 to 3 years old Size 4 = fits ages 3 to 4 years. Size 6 = fits ages 4 to 6 years. Size 8 = fits ages 6 to 8.