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A basic sandal/shoe/boot is made out of three main elements. The first is the sole or lower part, which covers the sole of the foot. This can come in one or more layers, such as the insole, the midsole and outsole. The second element is the heel, which covers the region of the heel of the foot. This can be small (kitten), shaped (louis), very fine (stiletto) or just large (wedge), tall (high) or indeed large and high (platform).

 

 The basic elements of a sandal
The third element is the upper (sometimes called a vamp), which is used to cover the top part of the foot. In open forms of footwear the upper may only consist of a strap, while in closed forms it may b A pair of Balkan opanci made from a single piece of leather (mid 20th century; TRC 2006.0270a-b)e quite complex and made up of a series of sections (vamps and quarters) fastened together.
 
Some shoes are only made out of one piece (bag shoe; rivelin), which is used as a sole and upper combined, other forms of footwear may be made out of numerous pieces carefully formed into a complex structure that encases the foot. Traditionally, the various elements of a sandal/shoe/boot are sewn together, but more modern versions use glue or heat bonding.

 

 
 
 
 

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TRC closed until 4 May 2026

The TRC is closed to the public until Monday, 4 May 2026, due to our move to the Boerhaavelaan. The TRC remains in contact via the web, telephone and email. For direct contact and personal visits, please contact the TRC at office@trcleiden.org, or by mobile, 06-28830428.

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The TRC is dependent on project support and individual donations. All of our work is being carried out by volunteers. To support the TRC activities, we therefore welcome your financial assistance: donations can be transferred to bank account number (IBAN) NL39 INGB 000 298 2359, in the name of the Stichting Textile Research Centre. BIC code is: INGBNL2A.

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Since the TRC is officially recognised as a non-profit making cultural institution (ANBI), donations are tax deductible for 125% for individuals, and 150% for commercial companies. For more information, click here