New Era - Structured Stretch Cotton Cap. Finding a comfortable fit is easy with the New Era stretch fit in breathable cotton. Fabric: 97/3 cotton/spandex Structure: Structured Profile: Mid Closure: Stretch fit 39THIRTY FIT: Features a casual look with a stretch-to-fit styling, a contoured crown and precurved visor. Structured for stability with a classic cap shape. New Era products may not be resold without embellishment.