The Merz b. Schwanen 1950's T-shirt might be as close as you can get to being back in the 1950's, short of making your own time-traveling DeLorean. A simple, classic t-shirt in an unbelievable lightweight, loopwheeled cotton fabric. This really is the t-shirt you've been waiting for, McFly.
Merz b. Schwanen 1950's Crew Neck T-Shirt - White