After searching and searching for professional quality lewis bags, I decided to collaborate with a local Seattle fashion designer and produce our own:
Check out my blog post on the subject:
Or check out the Desinger's etsy for more information
Bar Manager, Naga Cocktail Lounge
Chantanee Thai Restaurant
That Lewis bag looks great, however it looks like it's length/width ratio migth make it a little more difficult to work with? I'd rather see something with a little more wider mouth, but then that's only because that's what I've used in the past.
Come on down to chantanee and see one in action! I'm quite satisfied with the LxW ratio. I tend to add my ice, close the flap and roll down the length to create a nice tight pouch and pound with a mallet. I feel that the extra length relative to width begets a larger, more uniform yield with fewer strokes.
You can be the judge!
Oh, It also occurred to me that you may be thinking that the mouth looks small because you are assuming that the size dimensions are approximately similar to other bags on the market;
These particular bags have larger dimensions and greater capacity than say, tag or The Lewis (tm) bags. the mouth opening is 10" x 18 inches bag lengh: The mouth should be large enough for all your scooping needs :-P.
Adam at The Boston Shaker has a really nice one, that's more for the home bartender, although a few Boston area bartenders use them, too. I'm a little partial to them, since my mom-in-law makes them for him, but don't hold that against me...
Acme Cocktail Company
I second the quality and aesthetic value of the Boston Shaker's bag.
On the cheap, you can get canvas bank bags that work just as well. A bit plain looking, but they're easily had on eBay.
Of course, Drink's handmade Lewis Bags are worth a mention (bartender Josey Packard sews them herself using thick canvas and triple stitching them).
Cocktail Virgin blog & author of Drink & Tell: A Boston Cocktail Book.