True Fit Protective Hygienic Small Liners Strips Children Kids Swimwear Petite Lingerie White Hypoallergenic medical grade adhesive Liner Measurements: 1 1/2" x 4" Enables the hygienic liners to stay in the swimsuit without leaving residue upon removal. This material has been tested in an independent laboratory and found to be hypoallergenic and to have zero dermal irritation to the skin. Hypoallergenic medical grade adhesive.