The big difference between this and their other jackets is it uses the latest Pertex Quantum 10d outer and lining. In English, that means it’s both very hard-wearing and extremely light.

It weighs just a little more than their ‘lightweight’ jackets, yet it’s much, much warmer.

The Infinity comes with its own stuff sac, and packs very small. Despite that, it puffs up nicely to provide lots of warmth & insulation.

Here are some of the specs:

• 210 grammes of 850+ US fill power down (180g women).
• European white goose down.
• Adjustable hem
• Lycra edged hood & cuffs.
• Zipped handwarming pockets.
• Comes with its own stuff sac.

It comes in red, blue or black (or ‘juicy’, blue and ‘dark shark’ as Rab call them). The Women’s jacket comes in ‘fjord’ (blue), ‘dark shark’ (black) and ‘raspberry’ (purple).

• The Men’s Jacket is available at Tiso Online
• The Women’s Jacket is available at Cotswold Outdoor

The Neutrino Endurance is a high-performance down jacket with exceptional warmth to weight ratio.  The Neutrino is perfect for lightweight alpinism and mountaineering, yet stylish enough to be seen in on the highstreets of Britain.

• Pertex Quantum Endurance Outer
• Velcro adjustable cuffs and elasticated hem at base
• Two external zipped hand-warmer pockets
• One inner zipped security pocket
• Full-length frontal zip
• Fixed filled down hood with drawcord closure and stiffened visor
• 96% Polish Goose down
• 750+ Fill power
• 625g weight

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The Rab Summit jacket is a technical jacket for mountaineering, which is suited to extreme alpine and winter use or for hanging around camp on cold evenings.

• Pertex Endurance outer
• Stretch Cordura panels
• Two external pockets
• 2 internal mesh pockets, one internal security pocket
• Full length front zip with studded, down filled storm flap
• Elasticated hem drawcord
• Adjustable cuffs
• Detachable down-filled hood with wrap around face protection and stiffened visor
• 90% goose down
• 660+ Fill Power
• Box wall construction
• weight 980g

Ready to Buy? Click here for our list of recommended retailers