- O'Neill Size Chart - Stay cool and stylish in the O'Neill® UPF Slub Solid Standard Short Sleeve Woven Shirt. Designed for warm-weather days, this versatile shirt features a classic collared neckline, button-front closure, a straight hem, and a chest pocket for a timeless look. Crafted with O'Neill Hyperdry fabric, it offers moisture-wicking and wrinkle-resistant properties to help keep you feeling fresh throughout the day, while UPF 50+ sun protection adds an extra layer of coverage during outdoor activities. - 68% polyester, 24% cotton, 8% elastane. - Machine washable. - Imported.