Chasing Horizons The Chasing Horizons Aviation - Mountain Horizon T-Shirt is built for pilots who find their peace above the peaks — where jagged ridgelines give way to open sky and, on the rarest of nights, the northern lights ignite the horizon in waves of emerald and violet. This is the flight you'll never forget. Built for the Aviator Lifestyle: Ultra-soft Bella + Canvas Triblend — 3.8 oz., pre-shrunk and ready for wherever the winds take you Semi-fit unisex cut that looks sharp from preflight to summit views Breathable triblend fabric (50% polyester / 25% combed cotton / 25% rayon) keeps you comfortable at altitude and on the ground Tear-away label — no distractions, just the mountains ahead Available XS–3XL The Adventure Begins. Wheels Up! Size Chart Size Body Length Body Width Sleeve Length XS 27" 16.5" 8" S 28" 18" 8.25" M 29" 20" 8.63" L 30" 22" 9.13" XL 31" 24" 9.63" 2XL 32" 26" 10.25" 3XL 33" 28" 10.88"