The Under Armour Heatgear Sonic Shorty features an updated fabric weight for more coverage and support. The HeatGear Sonic fabrication provides superior 4 way stretch to give you a greater range of motion during your workout. The anti odor technology keeps you smelling fresh even at the end of your toughest workout while the wide waistband delivers ultimate comfort and fit. HeatGear is best for weather between 75 and 100 degrees. 2.5" inseam. 7.78 oz. 80% Polyester/20% Elastane. Imported.