Normally, women menstrual period begins around 12 years old, which means there will be more than 2,300 days in period during her whole life. At the beginning of girl's menstrual cycle, girls often get their pants and sheets messy easily. When leaking, girls would be quite embarrassed, especially at school. Our girls' period panties will provide extra protection, so using them with a pad/tampon will be perfect to avoid such embarrassing moments. These panties will also make girls feel peaceful during their heavy days. These Period Panties featured with breathable, stretchy and soft. Breathable material are better for women/girl's private health. This is a product for girls/women who don’t getting used to having periods. It takes away the anxiety of an unwanted leakage, and avoid ruining “good” underwear. Notes: 1. Period Panties Do Not Mean a Replacement of Pads/Cups/Tampons. The main function of the period panty is to avoid leakage, but the pad/tampon is to absorb liquid. The menstrual panty must used together with pads/cups/tampons to achieve the perfect protection. 2. Please allow slight 1-2 cm manual measurement deviation for the data. Value 4 Pack Breathable Period Panties for Girls, Weight Measurement: Size S fits the weight: 88lb-110lb, Size M fits the weight: 110lb-130lb, Size L fits the weight: 130lb-150lb, Size XL fits the weight: 150-170lb Our period underwear provides great protection for women and girls during their menstrual cycle, or for light incontinence and postpartum issues, three layer of leak proof lining design, no worries for days with menstrual cycle overflow These period panties had been improved, broaden and longer than before, greatly avoid side leakage, excellent for days with heavy menstrual cycle. The leak proof lining is for providing protection against unexpected leakage from pads or tampons. You also need to use pads or tampons during Period Cycle Adopted micro mesh material featured with breathable and soft, great for girls private health, especially good for the hot summer use, make your girls feel at ease during the period cycle Fit type: Regular