Here's a old vintage Brooks ad for the John Walker RT-1 running shoes from 1980.
Ad info is below:
"IF YOU TRAIN MORE THAN 50 MILES A WEEK, YOU REALLY OUGHT TO IN MY SHOES:"
"The folks at Brooks asked me to design a new shoe—a shoe that could be used for training and racing. Naturally, I jumped at the chance, because it just makes sense biomechanically to train and race in the same shoe. "Right up front, though, I made sure everyone understood one thing. I had to test this new shoe personally: To run in it under all kinds of conditions. Or my name simply wouldn't go on it. "Well, my name is on the Brooks RT-1. And I'm here to tell you that the RT-1 is the perfect marriage of a featherweight racing shoe with a firm, durable training flat. "The RT-I is light (about 7 ounces in size 9). And it's cool, because it's made of Brooks Special Open Mesh Nylon. " Plenty of cushioning in all the right places, too. With a wide, flared heel and Varus Wedge."' So you can train day after day without worrying about injuries. "And the RT-I is built on a racing last. Narrow at the heel and arch for closer fit and more speed. With extra 'toe spring' for a better kick and stronger finish. "Try the RT-1 for yourself. I can't promise you better racing times. But I can tell you I enjoy running in the RT-1. And I think you will, too. It's the most comfortable shoe for racing and training I've ever worn. In a word... Sensational."
RW5-STAR
*****
Runner's World Magazine
John Walker, World Record Holder
2000 meters (4:51.4), former World Record Holder in the mile (3:49.4). 1976 Olympic Gold Medal Winner 1500 meters.
The John Walker RT-1. Another sensational running shoe from...
BROOKS
Brooks Shoe Mfg. Co, Inc., Hanover, PA 17331