O'Neills Derry Hydra Half Zip Top Senior Discover the O’Neills Derry Hydra GAA Senior Half Zip Top. The perfect extra layer for training days, travel, or relaxed wear. Crafted from ultra-soft microfleece, our half zip provides breathable warmth while allowing full freedom of movement. The half zip design offers adjustable styling, and elasticated cuffs help lock in heat. Simple and versatile – this fleece is ideal for layering over a training top or under a jacket when the temperature drops. Soft Micro Fleece Elasticated Cuffs provide a secure & comfortable fit. Stripe Detail O’Neills Branding Derry GAA Crest