When the white, 30 lb. space suits used during the Apollo missions were created, human beings had forgotten how to make clothing--except tube socks--without seams. Those charged with creating the suits had to reinvent that lost technique. The History of Space Suits
Serious space travel needs suits that protect the wearer from the harsh realities of space while allowing freedom of movement. The Apollo and shuttle suits are bulky and limit mobility. Someone has to help his buddy get into one of those suits. Now Boeing has a new space suit that is easy for one person to put on, doesn't need a cooling unit to keep the person from sweating their brains out and isn't orange--a big plus for those of us who wondered, "Why orange? It's so ugly."