PUL (Polyurethane Laminate): PUL is a laminated polyester or cotton fabric, typically a stretchy knit, although you can find it as a laminated flannel or linen sometimes. It is WATERPROOF and one of the preferred fabrics for a diaper outer. There are both 1 mil (millimeter) and 2 mil versions, which refers to the amount of laminate on the fabric. 1 mil is more flexible and drapes better than 2 mil does, but 2 mil fabrics will hold up to washing better than 1 mil fabric will.
PUL is mainly produced by a company called Fabrite that has around 40 solid colors available. If you would like prints you can DIY laminate with a coop. Each coop does it differently, but you basically buy the fabric that you like, send it to the coop, and they put it together with other mama fabrics to be laminated by Fabrite. Visit the
Cloth Diapering Fabric Sources Page for a list of reputable coops that offer this service.
PUL can be purchased online for between $6 and $10 after shipping. PUL is not available in local fabric stores. It is available in various solid colors and also cute prints depending on where you buy it from. Colors go for about $1 more a yard than whites and prints can go as high as $14/yard. You can sometimes find this is “diaper sized cuts” which are usually 20 x 20 and enough for one diaper.
This high quality fleece is available directly from Malden Mills for $12-16/yard and through fabric coops for $6-12/yard before shipping. “Seconds” quality pieces are sometimes available. These are pieces that may have some slight imperfections but are sold at a lower price.
Windpro (WP) is a fleece (100% polyester) made by Malden Mills; the highest quality diaper fleece maker around. Windpro comes in lightweight, midweight, and heavy weight versions. Light and midweight are acceptable as a diaper outer for daytime. For nighttime use heavy weight WP as a diaper outer. Windpro usually comes with a layer of DWR (durable water repellent) sprayed onto it to make it more water resistant. WP comes in a variety of finishes. "Velour” is a soft finish, "Hard face” is a finish that is smooth and sometimes slightly patterned, loft refers to looping of the fabric to give a shag carpet type of look to one side of the fleece.
Windbloc fleece: A layer of waterproof material is sandwiched in between the fleece so it is truly waterproof diaper outer.
Note: Fleece CAN be purchased in local fabric stores, but not all fleece is alike. Fabric store fleece that CAN work as an outer diaper is the "no pill" variety. It will be water resistant for about 30+ washes before starting to wick liquids. You can treat this fleece with DWR (Durable Water Repellent) that can be purchased in the sporting goods department of your local Wal-Mart to make the fleece more water repellent. A good rule of thumb with fleece is: when you hold fleece up to the light, the more light that you can see through the fleece, the less water resistant it will be.