What are different prints on bras

You can't talk to men about bras. "They turn into giggling teenagers, it's exhausting," says Laura West. "Women, on the other hand, understand the problem immediately. For many of us, bras are one of the great plagues of our existence." They squeeze and scratch, they slide and cut. And above all, they are too small. West, industrial designer from the US state of Pennsylvania, wants to change that: with a large, sturdy bra from the 3D printer.

The demand is huge - and it is growing because breasts are getting bigger and bigger. In just 20 years, the average cup size American women buy has gone from 75C to 75F. In Germany, according to the Textile Research Center Hohenstein Institute, the chest size increased by 2.3 centimeters between 1994 and 2009. This is in part due to breast enlargements. The main culprit is diet: thicker women have bigger breasts. Almost two-thirds of all American women are overweight, and the number has more than doubled since the 1970s. But hormones in food or the early intake of birth control pills also play a role, according to the company health insurance fund VBU.

"We approached the whole thing like engineers"

There is a reason that she deals with the topic: women with large breasts often get back pain, tension in the neck or inflammation under the chest. Especially if they are wearing the wrong bra, which often happens - also because women are ashamed of big sizes.

The brassiere industry is hardly interested in women with large breasts, and sizes are hard to find. Several start-ups have now discovered the field for themselves, in Germany for example Sugarshape, in the USA Laura West's start-up Trusst has so far hardly had any competition. "The designers of the mass manufacturers always work on the basis of a maximum of 75C," says the 24-year-old founder. "They just want the parts to look cute. We approached the whole thing more like engineers." West raised capital on the Internet platform Kickstarter, and within a few days they raised almost $ 80,000.

Plastic spikes that provide additional breast support

The Pennsylvania bra is black or skin-colored and has a bit of lace, but the most important thing is invisible: the base. "We also call it the tank among the bras," says West. She tested more than 300 constructions with a 3D printer. Instead of wire, she sewed a sturdy plastic shape under the cups. It's about two inches wide and has additional plastic tines that run from the bottom to the center of the cups and support 80 percent of the weight of the breast. This is supposed to relieve the shoulders and shift the weight to the core muscles.

Trusst is just starting with mass production, and the first customers will receive their orders from next spring, for 100 to 130 dollars a piece. "Men think big breasts are great," says West. "But that's only true for women if you pack them properly."