Our Armycrew NASA Meatball High Frequency Logo Stretchy Flex Fitted Cap is an officially licensed product by BIOWORLD. This high quality stretchy snapback hat is featured with NASA high frequency logo on the front. Made of Cationic Fabric. Structured crown. 6 sewn eyelets. 6 Panels. Mid profile. Stiff and pre-curved bill, black color under bill. Stretchable material. Fitted with an inner elastic sweatband. Fitted end. One size fits most.