Is this sweatshirt warm enough for winter?

It is a midweight cotton fleece, best for fall, spring and indoor wear. In freezing weather you would want a heavier layer or a jacket over it.

How does Torrid sizing run on this?

It is a plus-size cut running to 6XL with stretch in the fabric. Torrid's size chart is the reliable guide; the listed US 6 is a small end of the range, not a standard misses 6.

What is it made of and how do I wash it?

60% cotton fleece blend with stretch. Machine wash at 30 degrees; turn it inside out and skip the dryer to limit pilling.

Does the V-neck run deep?

It is a standard V-neck, deep enough to show a tee or cami underneath. Layer it if you prefer more coverage.

How does it compare with a full-sleeve fleece sweatshirt?

The 3/4 sleeves and V-neck make it lighter-looking and easier to layer than a crew-neck full-sleeve fleece. You trade forearm warmth for that versatility.