Thermoregulating fibers adapt to temperature fluctuations

Take on the Lye Brook Falls Trail in style with Columbia's Sun Trek Short Sleeve II Shirt.

UPF protected and moisture-wicking fabric keeps you cool and dry on your hike. Embrace the sun with confidence in the playful Alpenglow design. Let your sense of adventure shine!

• 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-Wick keeps you dry and cool by pulling moisture to the fabrics surface to evaporate, delivering fast-drying, next-to skin comfort in the heat
• Rib binding on collar for a finished look
• Uses: Hiking
• Shell: 56% Polyester, 37% Cotton, 7% Lycra Elastane
• Trim: 58% Polyester, 39% Cotton, 3% Lycra Elastane

Neoprene free thermal layers provide chlorine resistance