Know your measurements. By now, we all know that sizes vary depending on the brand and even the batch the products were made in. This is easily navigated in-store by taking a quick trip to the dressing room, but with online shopping, you don’t have that luxury. Unless the store you’re buying from uses True Fit, you’re going to need to whip out the ‘ol measuring tape and take note of your bust, waist, hips and inseam. Not sure where to begin?