Montane Flux Primaloft Synthetic Insulation Winter Walking Belay Jacket

We have ordered the Flux Jacket for previous winter seasons. We can recommend them as the perfect mid weight Winter synthetic insulation belay Jacket.
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Availability: In stock

Regular Price: €175.00

Special Price €159.00


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Product Description

Montane Flux Primaloft Insulation Mountain Belay Jacket

Designed for cold and damp conditions in the mountains. Featuring layered 100g and 60g PRIMALOFT® SILVER ECO combined to maximise insulation without compromising comfort, the Flux was conceived to be more than a simple belay jacket. Extensively tested on the big walls of Patagonia’s Fitzroy in some of the most changeable weather conditions on earth.

  • Very warm 
  • ECO friendly face fabric and water resistant eco fill
  • Helmet compatible fully adjustable hood
  • Two-way centre front zipper
  • Two external hand warmer pockets
  • Two external chest pockets
  • One internal mesh drop-in pocket
  • Packable – stuffs into right hand pocket

Fabric: PERTEX® Classic Eco
Insulation: 100g and 60g PRIMALOFT® SILVER ECO
Lining: PEAQ Synthetic

Weight (approx.): 620g /21.9oz (M)

Sizes: S, M, L, XL, XXL

Fit: Active Mountain

Activities: Mountaineering / Fast Alpine / Mountain Walking / Basecamp


    • Constructed from 100% recycled PERTEX® QUANTUM ECO fabric that is completely windproof, showerproof and fast drying 
    • PEAQ Synthetic ECO lining that is supremely comfortable next to the skin, highly breathable and fast drying


    • 100g PrimaLoft® SILVER ECO in the body and 60g PrimaLoft® SILVER ECO in the arms and hood
    • Extra layer of 60g PrimaLoft® SILVER ECO in front of hand pockets


    • Designed for all round mountain activities 
    • Slightly larger chest and bicep dimensions allow for winter layering 
    • Articulated arms for high reach movement, tailored specifically to prevent hem lift 


    • Fully adjustable insulated climbing helmet compatible hood 
    • Rear volume compression for a close fit around head or helmet
    • Stiffened hood peak gives stability and wired edge allows adjustability
    • Internal elastic loop and hook on rear allows hood to be rolled down and stowed away whilst not in use in windy conditions


    • Two deep A-line hand warmer pockets positioned clear of a backpack hip belt or climbing harness
    • Two external zipped chest pockets
    • Easy sliding YKK VISLON® zips throughout for use in icy conditions
    • Internal left hand stretch mesh pocket
    • Stuffs into right hand pocket with internal carabiner loop


    • Full length two-way YKK VISLON® front zip for ease of use with a backpack or climbing harness
    • Internal storm flap with press-stud to secure hem and prevent water ingress
    • Roll over chinguard lined with brushed fine microfleece for comfort next to the mouth and chin
    • Easy grab ergonomic grippy pulls for use with gloves or mitts


    • Elbow darts to improve articulation
    • Shaped cuffs with adjustable hook and loop tabs for ease of use with gloves or mitts


    • Adjustable hem with two-sided cinchable drawcord and easy to use cordlocks


    • Rear external Montane hang loop


133g/m², 100g/m², 60g/m², 40g/m² performance synthetic mid-loft insulation
Warm when wet and fast drying
Wind resistant and water repellent
Compresses like down
Fibres produced from post-consumer and post-industrial plastic waste
Minimum of 50% recycled content

PERTEX® Classic Eco

72g/m² 100% recycled Polyester 50 denier rip-stop
Air permeability 1.0cc max (JIS L 1096 / ASTM D737)
DWR finish with spray rating 80 / 20 (JIS L 1092)
Abrasion resistance 20,000+ at 12.5k PA (BS EN ISO 12947-2)

  • The Flux Jacket uses PERTEX® fabric which contains a Durable Water Repellency (DWR) as the first barrier in keeping you dry. Clean your garment in order to maintain this.
  • Machine wash in warm water at 30°C/86°F with a mild detergent. MONTANE® recommends that you use Nikwax Tech Wash.
  • Do not use fabric softeners or bleach.
  • Drip dry.
  • Your jacket may need occasional re-proofing to restore the DWR. MONTANE® recommends Nikwax TX Direct.
  • Please see for more information.
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