COLUMBIA MEN'S ZERO RULES LIGHT SHORT SLEEVE CREW Color:BLACK Midweight Coolmax® socks actively move

Midweight Coolmax® socks actively move moisture to keep feet in their comfort zone on the trail

Ultra-lightweight and water-friendly injection molded EVA upper

Cut from an easy-wearing cotton-fabric blend

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COLUMBIA MEN'S ZERO RULES LIGHT SHORT SLEEVE CREW Color:BLACK Midweight Coolmax® socks actively moveKeep your cool with a tech packed crew shirt built for performance. UPF 50 guards against skin damage, while moisture wicking fabric keeps you comfortable in hot conditions. Omni Shade UPF 50 guards against skin damage using tight fabric construction and modified fibers to block UVA UVB rays, so you stay protected in the sun Omni Freeze Zero keeps you cool and dry with sweat activated blue rings that absorb moisture and enhance evaporation for long