These are 100% authentic and purchased from gymshark. They are brand new never worn, I only took them out of the bag to take the photos for this post. Great pair of swimming suit bottoms and can match with it’s top or several other colors if you already have a pink, peach, or black top. Please use the size chart provided to compare your measurements to this size. No returns on items that do not fit. Here’s what the company has to say: ON YOUR WAVE It's time to hit the beach. Feel confident in the flattering brazillian cut of the V Shape Bikini bottom, complete with a fully lined interior and available in an array of summer hues to make you feel like the belle of the beach. - V shape design - Brazillian cut - Branded decal at left hip - Fully lined bikini bottom - Chlorine resistant fabric - UV Protection - Exterior fabric: 78% Recycled Polyester, 22% Elastane - Lining: 84% Recycled Polyester, 16% Elastane