Under Armour ColdGear Blue Mock Neck Compression Long Sleeve Shirt LG Under Armour men's mock neck long sleeve compression shirt in blue. 65% nylon, 21% polyester, 14% elastane. Made in Singapore. Compression fit, mock neck collar, long sleeve. Pre-owned, no visible wear. under armour compression shirt mock neck long sleeve blue large ua compression top athletic shirt workout shirt training top gym shirt running shirt base layer men's compression under armour mock neck shirt ua long sleeve compression tee blue athletic base layer men's workout top gym apparel training shirt running gear sport shirt compression fit activewear men's large gift under armour apparel fitness merch moisture wicking athletic top