Rab Andes Infinium 1000 Down Sleeping Bag (-28C)

Crafted to provide sanctuary in some of the planet’s most extreme environments — from the heights of Himalayan peaks to the stark beauty of polar landscapes — the Andes Infinium sleeping bag is brimming with advanced technology, meticulously designed to deliver exceptional warmth.

The Andes Infinium 1000 is generously filled with 1000g of ultra-high lofting 800 fill power European goose down. Its trapezoid-shaped boxwall baffle construction ensures the down lofts fully and evenly by eliminating cold spots and enhancing thermal efficiency. Inside, the reflective TILT technology, recognisable by its distinctive silver lining, directs body heat back towards the sleeper. This innovation reduces radiant heat loss by up to 32%, significantly improving warmth without adding extra weight or bulk, nor compromising on breathability.

Designed with a mummy silhouette, it offers warmth comparable to the Expedition range but with a more streamlined, less bulky profile. Its outer shell, made from GORE-TEX INFINIUM™ WINDSTOPPER®, creates a dependable, windproof barrier against frigid gusts. The face baffle and three-dimensional neck collar are engineered to cinch closely around the face and neck, sealing in vital heat. A three-quarter length YKK® zip includes an internal baffle to prevent heat leakage, and the angled foot box ensures a naturally comfortable sleeping position.

Each bag is hand-filled in the UK, and the down has never been compressed prior to use — a crucial detail that preserves its loft and thermal performance from the outset.

Features

• The outer is constructed from 13D GORE-TEX INFINIUM™ with WINDSTOPPER® technology (45gsm) and features a DWR finish for added protection.
• The lining is made of 20D nylon ripstop, integrated with TILT technology (35gsm) to enhance thermal efficiency.
• It is filled with 800 fill power European goose down treated with a Nikwax fluorocarbon-free hydrophobic finish (1000g / 35.3oz) to maintain performance in damp conditions.
• The GORE-TEX INFINIUM™ WINDSTOPPER® shell provides robust weather resistance while allowing breathability.
• TILT lining technology reflects radiant heat and minimises warmth loss.
• Trapezoidal boxwall construction with a differential cut is used to optimise down loft and trap warmth.
• Longitudinal baffles at the chest and foot are fitted with internal Flowgate technology to keep down evenly distributed.
• A snug face baffle and 3D neck collar enhance insulation by sealing warm air inside.
• GORE-TEX INFINIUM™ lining is included in the face and foot areas for added moisture protection.
• A YKK three-quarter length zip is fitted with a down-filled internal baffle to retain heat.
• A YKK zipped internal pocket provides a secure stash for small essentials.
• The angled foot box supports a relaxed and natural sleeping position.
• A zipped cotton storage sack with a water-resistant base is included for at-home storage.
• A roll-top waterproof stuffsack is also provided for use during expeditions.
• The outer is composed of 100% polyamide with an ePTFE membrane, while the lining is 100% polyamide with a titanium coating.
• The mummy shape enhances thermal efficiency and reduces unnecessary space within the bag.
  
  

Sustainability Features

• Made with renewable energy
  
  

Specifications

Technology

TILT (Thermo Ionic Lining Technology)

This innovative heat-retention technology functions similarly to an emergency blanket by reflecting body heat back towards the wearer while still allowing for breathability and comfort. By enhancing thermal efficiency, it provides essential warmth when temperatures drop significantly.

GORE-TEX INFINIUM™ WINDSTOPPER®

Completely windproof and highly breathable, perfect for high energy mountain activities when waterproof protection isn't a priority. Flexible and functional, it manages moisture and ensures complete comfort on the move.

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