Reliability tests to study the thermal performance of a textile with thermo-regulating properties (sample A) during thermal cycling were carried out using DSC analysis (Figure 5). It can be observed that the latent heat storage of the sample does not change whenheating/cooling cycle is repeated (less than2 % of latent heat variation). Furthermore, melting and freezing transition points of the coated fabrics shift to higher temperature than microcapsules containing Rubitherm® RT31. This fact could be attributed to the influence of the polymeric binder on the thermal response of textile (Salaün et al., 2010). Therefore, these results demonstrated that textile substrates with different characteristics