Fabrics
Linen
* Fabrics - Store.com - Awesome linen at a good price.
* Fashion Fabrics Club - Great linen quality
Wool
* Woolrich Fabrics - Great selection but not the lowest prices; if you need a specific color they likely have it.
* Fashion Fabrics Club - Often has good light weight wools in stock
* BBlack and Sons - Good coat weight wool.
* Denver Fabrics - Good rotating stock.
* Fabric.com - Hit or miss on their stock.
* Hamilton Dry Goods - Email first, they don't update their site often.
* Carolina Calicoes - They have more than is on their website. Email them for what they have is stock. Warning they travel allot and are slow to email back sometimes.
Hemp
* Hemp Traders
Silk
* Rupert, Gibbon & Spider, Inc.
* Thai Silks
* Dharma Trading Co.
i would go for 100% linen from
http://www.fabrics-store.com/ say around the 5.3 oz (middle of the road) thickness.