This is an essential piece of any serious mountain kit. Inspired by climbers, then refined to handle virtually anything, the Delta Jacket’s 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. The simplicity of design extends its versatility – wear it as a midlayer in cold conditions or a standalone in cooler temperatures. Technical Features: Great warmth-to-weight ratio Versatile Warm and comfortable Collar Configuration Mid-height collar layers easily Construction: Polartec® Power Dry® fleece has a voided grid interior for maximum warmth and a smooth outer surface for easy layering Cuff & Sleeves Configuration Thumbholes help keep sleeves down and make layering easy Logos & Label Configuration Arc'teryx Bird logo Pocket Configuration Laminated chest pocket with laminated zip Sustainability Contains materials that meet the bluesign® criteria Zippers & Fly Configuration Full front zip with TPU zipper pull(s) Corded chest zipper pull