The Nash Zero Tolerance Merino Stage 1 Top is a thermal base layer built from 100% 180gr/m2 hypoallergenic Merino wool. It is designed to sit next to the skin as the first stage of a layering system, providing core warmth while remaining breathable, lightweight, and offering UV sun protection. The construction allows free movement, and the fabric works to manage moisture and temperature during active fishing sessions. - Flat lock stitching for comfort against the skin - Crew neck to retain core warmth - Drop tail for warmth with reduced draughts - Elasticated thumb loop cuffs for comfort with Base or Outer Layers - THERMAL - BREATHABLE - LIGHTWEIGHT - UV SUN PROTECTION - FREE MOVEMENT