Herewith a list of online fabric buying options for garment sewists. Some are stand alone cyber retailers, some are online outlets for Brick & Mortar shops. I have done business with many of these businesses, but cannot guarantee any transaction. This list is entirely of my making, I have not been paid for any endorsements. I always encourage people to do business with their local brick and mortar store first. Our community stores will not survive, and thrive, if we don't patronize them. Shop local first! But, if you cannot find the garment fabric you need, do not despair, more and more people are sewing garments again, and there is tons of fabric for you to find. You just need to look for it!
You can buy garment fabrics online! You are not limited to the quilting shops or larger chains you may have in your immediate area. (Although your local quilt shop could very well have some garment substrates hidden amongst their flat cottons, do some detective work....!) Buying fabric sight unseen requires some knowledge about fiber, substrate, weave, and hand. Educate yourself! Touch everything whenever you can. Ask questions, do research! There are some good basic books out there, and various online glossaries. Make note of fabrics you like, and what is (and isn't) successful in your makes. The more you know about terms and descriptions, the more successful you will be in buying online. You can do it! And if you're still uncertain, get a swatch!
ps I make no claims for this list to be comprehensive. It is only what I have discovered. If you have a source that I am missing, please let me know!
A huge online warehouse of all sorts of fabrics. It requires some digging, and time, but you can find all sorts of useful fabrics here.
Another huge online warehouse, but this one focuses more on garment fabrics.
Inexpensive source of Linen.
HUGE selection of Designer fabrics. Prices can be high, but the sales help.
Based in Denver, CO, this store is certainly worth a visit. But if you can't get there in person they have a great selection available online. In addition to selling all the Modern fabric designers, they are very good at searching out smaller runs of beautiful natural fibers. Plus you can buy patterns, yarn, and other supplies from them too!
Worth a visit when in Seattle, but in the meantime, this thoroughly Modern store has a great selection of natural fibers and Modern designer fabrics.
Famous for their ongoing role on Project Runway, you too can shop where NYC shops for fabric! The online selection won't allow you to scramble wildly through the aisles (and aisles!) of fabric bolts, but you'll find a great selection of garment fabrics, including all sorts of Seventh Ave designer overruns and bolt ends. Will swatch.
LA's answer to Mood. Deep inventory of all sorts of fabric substrates, some very good prices. Will swatch.
Lesser known in this hemisphere, but beloved to Down Under sewists, this New Zealand giant has an American outlet in LA, and you can shop them online too! Will swatch
You can shop this SF institution online! They may be moving soon (greedy developers!) but if you're in SF be sure to visit! In the meantime check out their online listings... Will swatch.
Based in Chicago for those in the middle of the country. Will swatch.
This company produces some beautiful patterns, and now you can also buy the delicious fabrics you see in their images. I dream of visiting the store, someday!
In the garment district in NYC. Linen, linen, linen...
I've never been, but have heard legends about this place in CT. So if you're on the East Coast it's worth investigating. Mail order is doable, they swatch, but a visit is probably the better way to shop.
Wide and diverse selection of Interfacing.
A deep selection of beautiful Japanese textiles & patterns.
Apparel fabrics from modern designers to basic substrates, patterns and notions too.
Billed as the official outlet of Cone Denim. You can find authentic selvage denim here for the diehard jeans makers.
Cone denim. Need I say more....?
An ever expanding array of Organic fabrics.
A remarkable selection of eco-friendly, fashion forward fabrics.
A wide range of fashion fabrics, as well as notions, patterns and a blog.
A small well-curated collection of ethically made fashion fabrics.
A curated selection of fabrics and patterns, with seasonal highlights and a blog.
A Canadian company with a well curated selection of garment fabrics, including bra-making supplies. Be mindful of customs/shipping for US customers.
A small but lovely selection of fabric, yarn, and patterns.
A UK source of lovely ethical garment fabrics. With the current state of the British Pound, the prices are quite reasonable.
A smaller nimble LA fabric retailer that sources Designer mill ends and remnants. Always something different to find here.
You may remember her name from Vogue Patterns, but she also sells high fashion fabrics at good prices.
Perhaps the largest selection of Jersey available online. The quality of the in house brand can be spotty, so buyer beware.
Canadian business, so be aware of shipping/customs if you're ordering from the US.
NYC business with kits, patterns and fabrics for bra-making.
Lingerie and bra-making supplies.