Another important feature to consider is how the tote carries. You have several options here as well.
Shoulder strap: These are often long enough to go over one shoulder. The best designs will have some kind of padding to adjust on the strap itself for added comfort.
Choose shoulder straps if you don't have long to walk, as carrying a tote over one shoulder can be cumbersome after a while.
Handle: Some straps only allow you to carry the tote in one hand. Choose these if you're taking the wine from the car into someone's home.
Long strap: These often go over the chest and the tote itself sits at the hip like a messenger bag. These are good if your destination involves a bit of a hike.
Backpack style: Backpacks are the best possible style if you plan to take your wine on an outdoor excursion. The wine slings right over the back with these wine carriers & totes.