Along with many other designers, Gernreich took advantage of the development in the mid-1950s of upgraded machine-knitting techniques to produce his work. Double knitting (which was developed in Italy) enabled the mass-production of easy-to-wear knitted suits, coats and dresses that retained their shape and became a key American look in the 1960s and '70s. Another knitwear development involved varying the lines of the classic T-shirt so that it could be extended into dress-length versions, long or short sleeves, and other variations, including, by 1960, a sequined long evening version by Kasper for Arnold & Fox. In the 1960s, American sportswear depended on very simple shapes, often made in vivid colours and bold, geometric prints (such as those by Gernreich and Donald Brooks).
Whether the 411 comes from targeted posts on Facebook, influencers promoting on Instagram, or just a new logo on a slick pair of joggers that catches your eye at the gym, there seem to be a never ending amount of brands producing fitness clothing. And with specialty gear comes specialty prices—most of the newer brands are expensive to the point of being prohibitive, even though they've largely not been tried and tested by the general public. How can you know if you’ll regret shelling out the dough for a shirt one of your favorite follows was rocking on the 'Gram?