What is „Tracht“ ?

Traditional dress is called „Tracht“.  Originally worn as Sunday best and for festive celebrations such as the cows returning from their summer pastures with the celebration of distributing the cheese made in the Alps over summer.
 
The costumes styles and designs are cared for by a number of Costume clubs to preserve the culture and traditions. Each area has its own costume style for example Lauterbrunnen is different from the Grindelwald fashion.
 
The Tract Commission also gives tips on how each piece of the costume needs to be appropriately worn. For example, the Lauterbrunnen ensemble includes a straw hat,
“The hat is intended as a sunscreen. He belongs on the head. In closed rooms, the hat can also be worn on the back or in the hand. The brashest we wear the hat a little bit obliquely. Turn the edge slightly forward. Little flowers are optional”.

Source: https://www.trachtenvereinigung-bern.ch