3-pack of Buttons' microfibre daytime inserts Super slim yet super absorbent not like your usual microfibre inserts  3-pack of Buttons' daytime inserts. Buttons’ stay-dry microfiber daytime inserts are made of 4 layers of absorbent microfiber, with a layer of moisture-wicking fleece on top to keep baby feeling dry. Buttons cloth inserts snap right into their nappy covers to keep inserts from shifting around. Stay-dry microfiber inserts come in all 3 sizes for your growing baby: - Small inserts fit babies from 7-15 lbs (inserts are 11" in length) for the One Size covers - Large inserts fit babies from 15-25 lbs (inserts are 13" in length) for the One Size and Super covers - X-Large inserts fit babies from 25-40 lbs (inserts are 15" in length) for the one size and Super covers