Let me attempt to break it down for you a little. I'm sure I will need to add to this post daily for at least a month to encompass all caps and details.
FULL LACE CAP
A full Lace cap is the coolest and lightest weight option of all the wigs. It's a thin veil of lace that has individual hairs hand tied throughout the entire cap. It can be parted in any direction or have a full bang cut into it. It has clips and an adjustable strap for those with hair. If you have no hair you can glue or tape the cap on. This type of cap can also be used with a "sew in" where it is sewn to your natural hair after braiding it down.
LACE FRONT CAP
The lace Front Cap has 2.5 inches of hand tied lace across the front that can be parted in any direction. The remainder of the wig is a closed cap with wefting. This is a good option if you like a very thick wig and a natural front.
SILK TOP FULL LACE CAP
The silk top is lovely because it hides the knots from the hairs tied into the lace. It looks just like a scalp. It's a little warmer than full lace with no silk but still very light weight.
A silk top cap can be all hand tied or have wefting throughout.
MONOFILAMENT
A monofilament top wig is a hand tied thin sheer material. The hair can be parted in any direction and can be attached to a fully hand tied cap or a wefted cap.
A double mono has an extra layer of material to add to the comfort of the cap.