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Looking for suggestions for fabric and supplies to make your carrier? Here is a list of suggested sources where I have made purchases.
It is important to use fabric of a heavy enough weight and weight tested straps and buckles. My patterns include measurements for use of woven babywearing wraps, but if you are looking for purchased material, here are a few places to look.
Mahogany brand tablecloths are a favorite for babycarriers and ring slings. The patterns mimic those found on purchased carriers. Cotton duck and colorful denims are generally the recommended 9oz weight.
Webbing and buckles
AllieLaneinAbbyville on Etsy sells kits if you are looking for one stop shopping.
High quality foam will make a big difference to comfort of a carrier when used in shoulder straps. It is worth making sure you buy high quality by looking for foam with a compression of 33lbs or more. I source foam from a local upholstery store, but this foam is similar or this foam if you are in Canada.