Spreadshirt Keep Calm Swim On Women&rsquo;s Premium T-Shirt Designed and printed in the USA. Do you love swimming? Show it off with this beloved "Keep Calm And Swim On" design. Perfect for wearing to practice or to gym class. The headliner of the Spreadshirt Collection is our premium t-shirt. This is as perfect as perfect gets: it's soft yet stretchy, a little longer than a standard tee and figure-flattering. 100% cotton (except for heathered colors); Fabric weight: 5.29 oz (midweight). For best results and to maximize durability machine wash cold, inside out and tumble dry on low heat. Official sizing (width x length measured in inches): S (17.5" x 26") | M (18.5" x 26.5") | L (20" x 27") | XL (21.5" x 28") | XXL (22.5" x 29") | 3XL (24" x 29.5").