I think they are called "heavy shoes"
Boots
they wear them to hold them down because there is no gravity in space they are called gravity boots
A heavy book would be called a tome. These books are almost always very large and profound books to reads.
A large body of water that forms after heavy rain is called a flood.
they wear boots and other heavy and thick shoes
Because shoes are heavy and uncomfortable. They also tangle your bedclothes up.
Trail shoes are shoes for running in rough terrain. They are bulky and heavy I do not recommend running with them in places were there is not rough terrain.
jazz shoes are called jazz shoes because you use them for jazz
cobblerA person who mends or makes shoes is a Cobbler
The best source to find large running shoes is eastbay. They have sizes for many different shoes. They have large sizes for any sports including basketball and running.
Ballet shoes or Pointe shoes