Arcteryx Ionia Merino Wool SS

The Arc'teryx Ionia Merino Wool Short Sleeve is a versatile alpine layer, engineered for those who demand performance across a spectrum of mountain disciplines. At its core, this lightweight tee utilizes ultra-fine, non-mulesed Merino wool, celebrated for its exceptional natural temperature regulation and moisture-wicking properties. To solve the traditional fragility of wool, Arc’teryx has employed a sophisticated core-spun technology, wrapping the fine-gauge Merino fibres around a resilient nylon core. This results in a fabric that retains the soft, next-to-skin comfort and inherent odour resistance of wool while gaining the long-term durability required for heavy pack use and rugged terrain. Whether you are trekking through varying microclimates or using it as a high-performance base for winter climbs, the Ionia delivers consistent thermal management.

Designed with the meticulous attention to detail typical of the Arc'teryx brand, the Ionia Merino Wool SS features an articulated patterning that ensures total freedom of movement during dynamic activities. The regular fit is carefully calibrated to work effectively as a standalone piece in warmer conditions or as a low-profile primary layer beneath a technical shell or fleece. Weighing in at a mere 155g, it provides a high warmth-to-weight ratio without the bulk. The minimalist aesthetic is finished with the iconic Arc'teryx bird logo on the chest, signifying its place in the brand's high-performance lineage. Furthermore, with its Bluesign approved materials, this tee represents a commitment to sustainable manufacturing processes alongside its top-tier technical specifications and refined mountain-ready silhouette.

Arc'teryx Ionia Merino Wool SS Features

• Merino / Nylon core spun jersey
• Arc'teryx Bird logo
• Bluesign Approved Material
• Articulated patterning

Fit: Fitted
Weight: 155g