Usually if an artwork is available in a Unisex or a Women's T-Shirt, it's available in all of the types of shirts that they have. If the "Clothing Style" drop down lists all of their types of shirts (which is like 13, I think), then it's available in all of those types of shirts, and you will receive whichever type of clothing style you select... You won't ever receive nothing at all. In the "Available Products" tab... They're just summarizing the types of shirts they offer. Instead of listing all 13 types of shirts there, they are just saying "We have Unisex Styles"..."And we have Women's Styles"... And then when you click on either one, they'll take you to the same page, with the Clothing Style drop down that lists ALL the types they have.
So, no matter which you click on (Unisex T-Shirt or Women's T-Shirt), they will lead you to the same location- the T-Shirts & Hoodies page, again with the Clothing Style drop down list. If one of the Clothing Styles doesn't specify if it's Unisex or Women's- then it's Unisex, really. So, like in your question, for example- the V-Necks and the 3/4 Baseball styles are technically Unisex.
And in regards to the comment above by chris m. about their products being cheaply made- I HIGHLY disagree. I have 4 shirts from this company- 2 of the 3/4 Baseball styles, 1 Women's T-Shirt, and 1 V-Neck. I am a woman, long torso, small waist, small bust- and I much rather prefer the Unisex/Unspecified (like V-Neck and 3/4 Baseball Styles) much more than the Women's T-Shirt style. It could be partially because I ordered the Women's T-Shirt a bit too small for my liking, but I find the 3/4 Baseball Style and the V-Neck fit very comfortably and nicely. They're not boxy, like a man's shirt might be.
AND one of my 3/4 Baseball shirts I ordered from them is my all-time favorite shirt and I've washed it hundreds of times, and the artwork has faded just a bit- but that's to be expected considering how many times I've worn and washed it. The color of the fabric still looks new though- as for all of the other shirts I've ordered from them. Definitely not cheaply made AT ALL.