What's it do? We added mesh panels in the back and sleeves to dump more heat, making it the perfect volleyball jersey for the heat. Product DNA - HeatGear® fabric is ultra-soft & smooth for extreme comfort with very little weight - 4-way stretch material moves better in every direction - Material wicks sweat & dries really fast - Mesh panels on back & sleeves for strategic ventilation - V-neck collar with colorblocked detail - Dropped, shaped hem - Fitted: Streamlined fit that’s not too tight or too loose. - Style #: 1370635 - Body: 79% Polyester/21% Elastane - Mesh: 100% Polyester - Imported