OTTO CAP OTTO COMFY FIT 6 Panel Mid Profile Baseball Cap, Superior Stretchable T8 Twill with Soft TPU Closure. T8 Stretchable Polyester Twill - Ultra-smooth texture with enhanced stretch. Has more stretch than T4 fabric Exclusive Star Product Line OTTO COMFY FIT - Designed with stretchable fabric and a sweatband, providing a no-pressure, all-day comfortable fit Dual-Side Fabric - Twill weave on both sides for a smoother, high-end feel Moisture Wicking UV Guard Technology - Wicks away sweat and blocks harmful UV rays Laser-Perforated Back - Water-drop perforations maximize ventilation, plus 1.25 of non-perforated area for decoration TPU Snapback - Premium closure with softer, flexible design for all-day wear Cool Comfort Stretchable Performance Sweatband - Antibacterial, anti-odor and moisture wicking properties