O'Neills Dublin Training Jersey Senior Discover the O’Neills Dublin GAA Senior Short Sleeve Training Top. Crafted from our high-performance Koolite fabric, this jersey utilises catch, move and release nanotechnology to transport moisture away from the skin keeping them dry and comfortable as they cheer on Dublin GAA. High Performance Koolite Fabric Knitted Ribbed Collar Breathable, Sweat Wicking & Quick Drying Official Dublin GAA Crest