Description Reviews Features Recommended use: Early-Mid SeasonWeight: 2 oz Fabric Details 19.5 Micron Superfine 100% Merino Wool Multi-Directional Stretch 230 GSM Insulation Product Features Excellent Moisture Management Wicks Moisture Away from Your Body Anatomical Fit Provides a Full Range of Motion Special Technology Naturally Antimicrobial for Ultimate Odor Control Naturally, UV Absorbent Eliminates Unnatural Glare Naturally Fire Resistant Naturally Stain Resistant