Discontinued . Icebreaker's Sonic zip neck shirt delivers outstanding softness and moisture-wicking performance. It features thumbhole long sleeves and mesh back and underarm panels for additional venting.

• Icebreaker harvests merino wool exclusively from sheep grown in the Southern Alps of New Zealand, where conditions are extreme and the wool responds accordingly
• Itch-free GT merino wool regulates temperature, wicks moisture and resists odor
• UPF 40+ sun protection
• Flatlock articulated seams won't chafe
• Underarms and back feature mesh panels for additional ventilation
• Reflective accents
• Zip neck with inner draft flap and zipper garage
• Long sleeves with thumbholes
• Length: 30" (based on size large)
• Made in China
• US shipments only