FIA 8856-2018 approved Relaxed fit Comfortable soft touch material This long sleeve top is part of the RW-4 race underwear range from Sparco which has been designed with a more relaxed shape. Constructed using a soft touch, flame retardant material for a more regular, comfortable fit with high levels of heat and flame protection. Highly comfortable soft touch material Relaxed shape for a more regular fit High levels of heat and flame protection Sizes XS - 32"-34" chest (82-86cm) S - 34" to 36" chest (86-92cm) M - 36" to 38" chest (92-96cm) L - 38" to 40" chest (96-102cm) XL - 40" to 42" chest (102-108cm) XXL - 43" to 45" chest (108-114cm) XXXL - 45" to 47" chest (114-120cm) FIA 8856-2018 approved