This paper presents the design of a 5G flexible antenna using Polyvinyl alcohol (PVA) material for body worn applications. Antennas need to fulfill some safety criteria especially involving the radiation towards the human body tissue. Moreover, the body worn antenna is located close to the human body, thus increasing the awareness to human health. PVA is new potentially flexible material because it has low dielectric and tangent loss, biocompatible and widely used in industrial and medical field. The proposed antenna is designed on pure PVA material and PVA with CaCO ₃ with dielectric constant of 1.64. The designed 5G antenna is in dimension of 50mm × 50mm and operates at 3.5 GHz. The maximum SAR for the 1g and 10g of tissues is 0.527 W/kg and 0.185 W/kg respectively.