SISU Aero Ultra-Thin Custom Fit Sports Mouthguard Color:CHARCOAL while the interior uses a

while the interior uses a mesh for breathable comfort

Fabric : Premium Plus Jersey: 84% polyester

Rib-knit collar

Lightweight performance fabric

SISU Aero Ultra-Thin Custom Fit Sports Mouthguard Color:CHARCOAL while the interior uses aA mouthguard only works if you actually wear it, and the SISU Aero mouthguard is thin enough that you will. At 1. 6mm in Small and Medium and 2. 0mm in Large, the Aero is a fraction of the bulk of a conventional guard, made from a thermoplastic SISU says is 30% stronger with 8 times the tensile strength of standard mouthguard material. It starts flat and moulds to your teeth at home in hot but not boiling water at 76C (170F), and its perforated