What is a mock?  The mock refers to the collar of the top.  A collar is the part of a shirt, dress, coat or blouse that fastens around or frames the neck.  Are you familiar with a turtleneck or polo neck top?  A simpler variant of the standard polo neck is the mock polo neck (or mock turtleneck), that resembles the turtle neck with the soft fold at its top and the way it stands up around the neck, but both ends of the tube forming the collar are sewn to the neckline.  The mock polo neck clings to the neck smoothly, is easy to manufacture, and works well with a zip closure.  Learn more about the mock neck tops.

A zipper, zip, fly, or zip fastener, formerly known as a clasp locker, is a commonly used device for binding the edges of an opening of fabric or other flexible material, such as on a garment or a bag.  Zippers come in all different sizes, shapes, and colors.  A half zip pullover is a women's top that is put on by pulling over the head.  It has a zipper that goes only partially down the front of the garment (approximately "1/4" the way).  They can be made from a wide assortment of materials including microfleece.

Microfleece fabric comes in various weights (fabric unit of measure).  Heavyweight is one of the options.

Microfleece, also called polar fleece, micro fleece or simply fleece, is a soft, napped, synthetic wool material often made from polyester.  It was first manufactured in 1979 by Malden Mills, now called Polartec LLC.  Microfleece fabric is a thin poly fleece fabric that wicks moisture away from the skin.  The fabric is cuddly soft against the skin.

It is a soft napped insulating fabric made from polyester.  It can be made partially from recycled plastic bottles and is very light, soft, and easy to wash. Polar fleece can stretch more easily in one direction than in others.

A lightweight, warm and soft fabric, fleece has some of wool's good qualities but weighs a fraction of the lightest available woolens. Fleece garments traditionally come in different thicknesses: micro, 100, 200, and 300, with 300 being the thickest and least flexible.  Microfiber (or microfibre) is synthetic fiber finer than one denier or decitex/thread, having a diameter of less than ten micrometres. This is smaller than the diameter of a strand of silk (which is approximately one denier), which is itself about 1/5 the diameter of a human hair.

Pros & Cons:  It is hydrophobic, holding less than 1% of its weight in water. It retains much of its insulating quality even when wet. It is machine washable and dries quickly. It is a good alternative to wool for those who are allergic or sensitive to wool. It can also be made out of recycled polyethylene terephthalate (PET) bottles, or even recycled fleece. Regular microfleece is not windproof and does not absorb moisture (although this is often seen as a benefit).  Fleece readily generates static electricity, which causes the accumulation of lint, dust, and pet hair. It is also susceptible to damage from high temperature washing, tumble drying, or ironing under unusual conditions. Lower-quality polyester fleece material is also prone to pilling.

What ever you are wearing, is in fashion.

If you want to be even more stylish, you should wear your favorite Women's Heavyweight Microfleece Quarter Zip Mock.