Company profile

Calze G.T. is an Italian company specialized in the production of Medical Stockings and Performing Compression Seamless garments.

Since the beginning of its business, Calze G.T. S.r.l. has aimed to engage in the research and the development of products for the health and the well-being of the body. Thanks to the opening to the global market and its expertise in export, Calze G.T. S.r.l. sells its products worldwide in more than 65 countries under its own brand names RelaxSan, FarmaCell and Yaluronica.

The RelaxSan brand includes a wide range of products – i.e. Medical Stockings, Graduated Compression Socks, Compression Sport Socks, Diabetic and Sensitive Feet Socks, Maternity functional underwear, and several Orthopedic body care products. FarmaCell and Yaluronica brands are two lines of Massaging, Modeling and Slimming Seamless underwear for the beauty of men and women.


Calze GT S.r.l. began its activity in 1984 with the production of regular hosiery, socks and tights and it has specialized in the field of graduated compression and medical stockings over the years.

Since the beginning, Calze G.T. S.r.l. has manufactured private label products for large international societies, thus increasing its expertise in research and development with the support and the cooperation of many important companies. In 1997, Calze G.T. S.r.l. created its own brand RelaxSan. In 2000, Calze G.T. S.r.l. started its own manufacture of seamless underwear, including all the products currently sold under the brand names Yaluronica and FarmaCell.

Calze G.T. S.r.l. products are now distributed worldwide in more than 65 countries.

Calze G.T. S.r.l. extends over an area of approximately 5.000 square meters, divided in two buildings – one for commerce and logistics and one for production – which are both located in Casaloldo, in the province of Mantua, the worldwide center of the hosiery production.

All the products of Calze G.T. S.r.l. are 100% Made in Italy, ensuring high quality standards!

  • 1984The Origins

    Calze G.T. began its activity with the production of hosiery, socks and tights
  • 1992International expansion

    The company begins its adventure towards international expansion, exporting its products outside of Italy.
  • 1997The first Brand, RelaxSan

    The company brand, RelaxSan, is launched on the market, defining its own line of compression socks.
  • 2000Seamless Underwear

    Born the first seamless seamless products from the research and development department of Calze G.T.
  • 2008FarmaCell

    The new FarmaCell line is an innovative range of woman shaping and man compression underwear.
  • 2014Yaluronica

    The new line of woman firming underwear with golden fibers and hyaluronic acid.
  • 2016RelaxSan Sport

    Unisex compression sport socks with elastic fber Dryarn, Suitable for all sports and in all seasons (warm in winter and cool in summer).


Company quality and product certifications


Calze GT products achieved the CE marking as Medical Devices Class 1, an essential requirement to be marketed and used within and outside the European Union. All the Relaxsan products comply with the essential requirements and provisions of Directive 93/42/EEC.


UNI CEI EN ISO 13485:2016

Calze G.T. S.r.l. owns the quality management system Certificate because it complies with UNI CEI EN ISO 13485:2016. The UNI EN ISO 13485:2016 International Standard regards the medical device industry and specifies the requirements for the quality management system of organisations active in designing and manufacturing medical devices and those that design and provide related services.



Calze GT products* have obtained the Oeko-Tex Standard 100 certification (world certification controls system for raw textiles, semi-finished and finished products, at all stages of the process) to ensure the absence of harmful substances and the health of our customers.

*Products containing Crabyon yarn and Yaluronica products are not included in the certification.

UNI EN ISO 9001:2015

Calze G.T. S.r.l. owns the quality management system Certificate because it complies with UNI EN ISO 9001:2015 for the following activities: certification: development and production of medical hosiery and orthopedics textile articles; Production of seamless cloths and underwear according to customer specification.



Calze GT is an FDA (Food and Drug Administration) registered company, the Agency of the United States Department of Health and Human Services, which aims to protect public health, safety and efficacy of products marketed in the US.



Natural materials, high-quality yarns, innovative technology and the attention to the needs of customers are the watchwords of the business philosophy of Calze G.T.



Global service with products in private label

Besides its own brands, Calze G.T. S.r.l. also produces private-label compression stockings and seamless underwear.

Calze G.T. is specialized in the production of Graduated Compression Stockings, Compression Sport Socks, Medical Stockings, and Compression Pattern Socks, from light compression to compression Class 2, over 30 mmHg. It is also specialized in the manufacture of functional underwear, Shapewear, and massaging and modeling products.

Calze GT manufactures high-quality products for the most important international companies and brands and cooperates with them to develop, create and produce these items. The high-standard levels of control and quality guarantee high-quality products and results.

Calze G.T. S.r.l. also ensures the maximum privacy and security concerning the development and the manufacturing of products in order to protect its customers.