Inspired by climbers, then refined to perform across a broad range of alpine activities, the Delta is a go-to when thermal efficiency, stretch, and all-mountain versatility are required. The Polartec Power Dry fleece’s voided grid construction delivers a high warmth to weight ratio and provides outstanding freedom of movement. Performing as a midlayer in cold conditions or a standalone in cooler temperatures, its versatility and comfort make it an essential piece of any mountain kit. This model is an updated design of the Delta LT Jacket with a revised fit and warmer fleece. Arcteryx Womens Delta Jacket Features: Weight 410g / 14.5 oz Activity Rock Climbing / Ice Climbing / Alpine Climbing / All Round Air permeable fleece mid layer. Thermally efficient, comfortable next to skin. Climbing equipment designed for efficient movement and protection in alpine environments Polartec - Synthetic fleece textiles with stretch, warmth and air permeable properties. Offers durability Arc'teryx Arc'teryx Womens Delta Jacket / Boxcar / L unisex Large Walk/Hike, Clothing, Midlayer&Fleece adult.