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RAB Men's Flux Pull-On

£32.97£55.00(Save 40%)

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A slimline thermal midlayer with wicking properties and anti-odour technology, designed to keep you mobile and fresh over multi-day treks or climbs. The Thermic™ knit fabric is warming without bulk and has a brushed back to increase comfort against the skin. All-day comfort is further enhanced by the low-profile Merrow® stitching. When you have been out for days on end, the Polygiene® Stay Fresh treatment will fight off the inevitable bacteria to keep you feeling and smelling fresh.

Product code: 039239


  • Thermic™ fleece fabric – single jersey knit with brushed back for extra comfort
  • Polygiene® Stay Fresh odour control – long-lasting anti-microbial agent combats the odours created by sweat
  • Moisture wicking
  • Merrow® Activseam™ stitching – strong, low profile seams for durability and next to skin comfort
  • YKK® ½ front zip - deep venting zip allows extra breathability
  • Stand up collar with chin guard
  • Thumb loops keep hands warm on cold days
  • Reflective branding
  • Fit: slim
  • Weight: 227g
  • Recommended activity - trekking / mountaineering / climbing
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FREE Standard delivery Within 5 working days on orders £70 or over. All other orders charged at £3.99.

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UK delivery

Next Day delivery Order Up to 8pm for delivery the next day - from £4.99

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International delivery

From £4.99 To over 200 countries worldwide. Some restrictions apply.

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Size guide

XS 33 - 35" 27 - 29"
S 36 - 38" 30 - 32"
M 39 - 41" 33 - 35"
L 42 - 44" 36 - 38"
XL 45 - 47" 39 - 41"
2XL 48 - 50" 42 - 44"
3XL 51 - 54" 45 - 48"
XS 84 - 89cm 69 - 74cm
S 91 - 97cm 76 - 81cm
M 99 - 104cm 84 - 89cm
L 107 - 112cm 91 - 97cm
XL 114 - 119cm 99 - 104cm
2XL 122 - 127cm 107 - 112cm
3XL 129 - 137cm 114 - 122cm

Mens Clothing size guide

Measuring tips

Take your actual body measurements as they are more accurate than measuring over your clothes or shoes.

Collar: measure around the base of the neck where the collar sits.

Chest: measure the chest at the fullest part, placing the tape close up under the arms.

Waist: measure the natural waistline.

Inside Leg: measure from the crotch to where your trouser is normally worn on the shoe.

Jacket Length: measure from the centre back of your neck to your hemline. Then length measurement will vary depending on the style.


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