I have always found that the hardest thing to do after a long, cold winter surf session..... is taking off my booties.
My back is already tweeked and I just want out of the suit and into the Pub for an after-surf cocktail.
The suction on "pull on" booties is a lower back killer when you get old.
I now use only Zippered Dive Boots... mine are Scuba Pro
So easy on.... Sooooo easy off. unzip, step out. Drink.
For reference... I regularly surf in -10 C (15* F)
For super cold flat-water paddling...I have paddled in -20C (harder to keep feet warm)
I use Neosport Explorer Boots
2 sizes too big, so I can wear 2 layers of socks
The boots come up to your knees... so your feet stay DRY when you launch
Zippered Dive Boots
You need extra warmth for this
5 mm NeoSport Explorer Boots