In Sub-tropical countries, it is common to use T-Shirts under the Shirt, or as we call, the Second-Skin or Baselayer. However, the use of more functional and technological yarns has been crucial to differentiate a simple 100% cotton, Polyester or Polyamide T-Shirt, from a BaseLayer or Second-Skin, with an intimate blend of viscose, biodegradable polyamide 6.6, recycled polyester PET yarns, with permanent anti-odor treatment, for example!
We already have some brands in Brazil and Colombia that are offering BaseLayers and Second-Skin and T-shirts with these functional yarns and finished with PCM Outlast® micro-capsules for temperature thermo-regulation. Check out the websites of the Skinshirt®, Reserva®, Insider®, and MC Armor® brands.