Yes it does zip in along the sides of the chest area. there are also velcro tabs in the sleeves, the bottom of the legs, and at the neck. I guess you could put the liner on separately but I tend to leave it in the suit when is cooler. Bear in mind that, if you are wearing a couple of layers of clothing under it, you may not need the liner very often... With regular pants, shirt and light sweatshirt, I only go for the liner below mid 40s for my 20m commute on the freeways in Houston... and I have gone down to mid 30s without and it's not a real problem for shortish trips.
6 months ago