• Thin and form fitting
• Suitable for temperatures from 40F to 80F (4C to 27C)
• Thermal properties that keep you comfortable on cool descents but prevent overheating on climbs
• Machine wash cool with like colors, tumble dry low
• No bleach, softeners, or harsh detergents
• 100% Polyester

 **Measure around the fullest part of the chest, under the arms, and including shoulder blades.**