Rab Women's Andes Infinium 800 Down Sleeping Bag (-23°C)

The Rab Andes Infinium 800 is a women's specific expedition sleeping bag built for the coldest mountain and polar environments. It pairs a generous fill of high-lofting 800FP goose down with heat-reflective TILT lining and a fully windproof GORE-TEX INFINIUM WINDSTOPPER outer, keeping the sleeper warm even when conditions turn extreme.

Filled with 800 g of 800FP European goose down, the trapezoidal boxwall baffle construction lets each section stack cleanly, cutting cold spots and maximising loft. The silver TILT inner lining reflects radiant heat back towards the sleeper, cutting heat loss by up to 32% without adding weight or affecting breathability and packability.

Built in a wide mummy shape for a more generous cut and extra room to move, the women's cut trims the length slightly, narrows through the shoulders and widens through the hips compared with the standard version, for a closer, more comfortable fit. Every bag is hand-filled in the UK, so the down stays uncompressed and fully lofted until it's used.

Features

• 13D GORE-TEX INFINIUM WINDSTOPPER outer fabric (45 gsm) with a durable water repellent finish, fully windproof and breathable
• 20D nylon ripstop lining (35 gsm) with TILT reflective technology to boost thermal efficiency without adding weight
• 800 g of 800FP European goose down fill, treated with Nikwax fluorocarbon-free hydrophobic finish
• Trapezoidal boxwall baffles with a differential cut to minimise cold spots and maximise loft
• Longitudinal baffles at the chest and feet with internal Flowgate technology to control down distribution
• 3D neck collar and face baffle to seal in warmth around the head and shoulders
• ¾-length YKK zip with an internal down-filled baffle to block cold draughts
• Internal YKK zipped stash pocket for essentials
• Angled foot box for a natural, relaxed sleeping position
• Women's specific fit: shorter length, narrower shoulders, wider hip cut for improved comfort and thermal efficiency
• Zipped cotton storage sack with a water-resistant base for home storage, plus a roll-top waterproof stuff sack for use on the move

Specifications

Sustainability Features

• Made with renewable energy

Technology

TILT (Thermo Ionic Lining Technology)

This heat-reflective lining works much like an emergency blanket, reflecting body heat back towards the sleeper while remaining fully breathable and comfortable. It can reduce heat loss by up to 32%, giving a real boost in warmth without adding weight or bulk.

GORE-TEX INFINIUM WINDSTOPPER

This fabric technology forms the outer shell and is fully windproof yet highly breathable. It suits high-output mountain use, where keeping sweat out matters as much as keeping rain out, balancing moisture management and comfort during active movement.

Rab's fluorocarbon-free fabrics are completely free of fluorocarbons (PFAS), whether in the face fabric, membrane, or backer. PFAS-free means all intentionally added PFAS have been phased out, compliant with current EU and US legislation.

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