I don't know what it stands for either...It is the brand name. When I ordered it - i googled "purchase YLI thread" or something like that. I got it from Rushbrooke or something like that. Definitely will order from them agoin - I hope i can find her card :)
The shipping cost from this woman was minimal and appropriate...unlike where i get my checks - $16 for shipping AND handling :thumbdown:
The cost for 2 large spools (1200 yds each) was 7.95 for each spool and less than $3 for the shipping. A smaller spool I think is $4...