Tags were removed for try on, but listed as NWT since it was only worn once briefly and tags are included. As seen on social media, this seamless strapless style is designed for all-day wireless support and features breathable and stretchy fabric technology, all-day, everyday comfort, anti-slip silicone grip, seamless design for a smooth fit, and convertible straps for customizable support. Website describes compression level as "medium." 90% Polyamide, 10% Elastane See last photo for sizing