The Stoney Creek Womens Accelerant Jacket brings serious insulation into a lightweight layer that will not dominate your pack. At 366g (12.9oz) in size 12, it is well suited to shoulder-season trips, alpine terrain, and cold backcountry days where warmth and pack space both matter.

Its insulation combines 30% PrimaLoft ultra-fine fibres with 70% water-repellent goose down. This blend is designed to maintain loft while allowing moisture and excess heat to escape during active movement. A 160g (5.6oz) fill weight and 750 fill power provide strong warmth without the bulk of a heavier insulated jacket.

Dual HeiQ XReflect radiant barriers add another layer of thermal efficiency by reflecting radiant body heat back towards you. Chevron-shaped microbaffles help keep the insulation evenly positioned, while the mini-ripstop nylon outer has a DWR treatment to resist light moisture and dirt.

The cut has been shaped specifically for women, with pre-shaped sleeves, fitted side panels, and a low-profile shoulder yoke. A shaped hood and chin guard help close out cold air, while stretch wrist panels sit neatly around the cuffs.

Once conditions improve, pack it into the supplied stuff bag and return it to your pack without giving up much space. It is the kind of insulation layer that earns its place when temperatures fall but every gram still counts.

Key Features

• PrimaLoft Gold Down Blend: Combines 30% PrimaLoft ultra-fine fibres with 70% water-repellent goose down for lightweight and breathable insulation.
• HeiQ XReflect Technology: Uses dual radiant barriers to reflect radiant body heat back towards the wearer.
• 750 Fill Power: Provides high-loft insulation while keeping the jacket lightweight and compact.
• Female-Specific Active Cut: Uses a shaped shoulder yoke, side panels, and pre-shaped sleeves for a streamlined fit.
• Chevron Microbaffles: Help distribute insulation evenly and reduce areas where warmth can escape.
• Shaped Hood and Chin Guard: Helps retain warmth around the head and neck without adding unnecessary bulk.
• Stretch Wrist Panels: Sit close around the wrists to reduce heat loss in cold conditions.
• Mini-Ripstop Outer: Provides a durable nylon shell for regular outdoor and backcountry use.
• DWR Treatment: Helps the outer fabric repel light moisture and dirt.
• Internal Chest Pocket: Keeps smaller essentials stored securely inside the jacket.
• Compact Storage: Packs into the included transportation stuff bag to reduce space inside a pack.
• Responsibly Sourced Down: Uses down sourced under responsible supply standards stated by the manufacturer.