Under Armour Women's Charged Cotton Undeniable Sleeveless Crew Cotton/Polyester/Rayon Cotton-rich tri-blend fabric has a soft, athletic feel for superior comfort and performance Signature Moisture Transport System wicks sweat so it dries faster than ordinary cotton Anti-microbial technology eliminates odors to keep your gear fresher, longer Lightweight, stretch construction improves mobility and is perfect for layering Side seam bar tack details let you know where to cut for the perfect crop