They are used in the same way as disposable ones, you just don´t throw them in the trash, but you wash them.
Bra accessories
Naturana Wire-Free Low Cut Padded Bra 5665 (A–D 32–42)
These lightly padded inserts provide an instant breast lift without adding too much padding. The unique shape makes them perfect for deep plunge
Invisible Lift Inserts
Barefoot BREBERKY - Fabric bra inserts
Adore Maternity & Nursing Bralette - Bare – Bao Bei Body
Cloth diapers
Swim Bra Cup Inserts - 1 Pair Fabric, Raspberry Creek Fabrics
Bra accessories
Sticky Adhesive Bra Inserts Double Side – Nueboo
Menstrosor - skydd i upp till 12 timmar
Foundations and undergarments – Fabricville
Bra Pad Inserts 4 Pairs,Sermicle Bra Pads Sewed Massaged for Sports Bra A/B or C/D Cup Beige or Black Optional : : Clothing, Shoes
Bra Inserts - Canada
Infinite Wonders Soft HYN49601 Hypernature by Pat Bravo Art Gallery Fabrics Quilting Fabric Yardage End of Bolt Destash - Canada