Clothes is really oversaturated and I know - that's what I primarily sell - but use the first 4 words in the title for the most important keywords - ex. Gap Sweater Large Green. Think of how a buyer will search -
Green sweater size Large - they may or may not be looking for brand specific - but I do include brand as 1 of my 4 main keywords. Women's, fabric, ect are all descriptive words that can be put later in the title - as you are already listing in the women's sweater category - so when a buyer uses the filter women's - your item will already be brought up.
Check to see what similar completed listings have sold for - that's the most important step as just looking at what someone is listing at doesn't show the true value of what buyer's think that item is worth.
You get a bounce for free shipping - but in clothing - I've sold just as many if not more items with shipping than if I raise my price and include shipping. You get a nudge for offering returns - the longer the better - but with clothes 30 days is more than enough time - especially used clothing.
Join the Global shipping program - you may not get many sales overseas because of the postal costs - but it does give you a bump in visibility.
Try listing or editing your listings everyday - this used to work and increase sales - but I haven't noticed it working lately - but I still do it. Let Ebay know you are working on your listings and you just don't throw them up there and let them sit - plus if someone is interested in a new listing - they may check your other older items and find something they like.
