No rip tag but measures about 20.5 inches pit to pit. I believe it is a large. FOR: Medium to high impact workouts at the gym, studio or outdoors FEEL: Seamless construction for maximum comfort and minimal chafing FAVE: Open hole stitchwork for breathability Grippers at inner hem to prevent it riding up Ventilation helps keep you cool Semi-fitted, skims easily over the body Regular length, hits at low hip Crew neck Body length in size medium: Regular: 24" 100% Recycled Nylon Heathered: 54% Nylon/43% Polyester/3% Elastane SEAMLESS: Beyond-soft, chafe-free fabric stretches with every move RATED UPF 40+ (Excellent Protection) BREATHABLE: Airflow moves easily through the garment Machine wash and dry