UMBRO ELITE V NECK BASELAYER LS 90% Polyester 10% Elastane Plain Stretch Poly. 86% Polyester 14% Elastane Stretch Single Jersey. 95% Polyester 5% Elastane Mesh. Ergonomic Placed Side Seams To Aid Performance. Flat Lock Seams Sit Close To The Body Ensuring Limited Irritation During Workout. Stretch Mesh Back Panel Provides Targeted Ventilation. Reflective Stacked Diamond Logo.