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ThermoAscent Jersey - Navy


The ThermoAscent Jersey - Navy

For those who seek warmth while climbing high through deep winter. The ThermoAscent Jersey. A deep winter super warm long sleeve thermal jersey designed to insulate the body and keep you warm in temperatures down to 2c. (35F) 

Made with a brushed, fleece-lined Italian 'Stelvio' Fabric, the ThermoAscent Jersey offers excellent thermoregulation and moisture management capabilities.

A close-fitting but high stretch jersey, our high collar keeps cold air away from the neck and chest, whilst tight wrist cuffs keep the cold from your arms and wrists.

3 large rear pockets provide ample space for winter essentials, plus a 4th water repellent zipped pocket for valuables keeps things safe and dry. A large deep reflective strip on the rear pocket keeps you seen in the dark or low light, and the black pocket fabric prevents mud or road spray from spoiling the aesthetic of your new jersey.  


  • Close Fitting Long Sleeve Thermal Jersey
  • Premium Italian Fleeced Fabric
  • Stretchable to ensure a perfect fit
  • Large hidden zipped phone/valuables pocket
  • 3 large rear pockets
  • Large deep visibility reflective strip on rear pocket
  • Reflective tabs for added visibility
  • New 3D Silicon chest logo
  • New 3D Jersey detailing
  • Full length YKK cam-lock zipper
  • High collar and deep cuffs to add warmth where it matters
  • Silicone gripper at the hem
  • Material : 83% Polyester / 17% Spandex

Care Instructions

  • Wash at 30c with similar colours
  • Do not tumble dry
  • Do not Iron.
  • Do not bleach
  • Air dry
  • Do not dry clean


    Click here to view the Size Guide

    Studio model is 172cm, 67kg, and wears a size Small to give a close fit

    Customer Reviews

    Based on 12 reviews
    Michael Harbour
    Thermo Ascent - a versatile winter jersey

    I am really impressed by my Thermo Ascent jersey. I have already ridden in it, on several occasions, in temperatures ranging from 15 to 3 degrees centigrade. Partnered with a BOC merino base layer, it has coped excellently, keeping me warm, yet not sweaty in all conditions, whether climbing, descending or hammering home on the flat to avoid the rain. Even in the winter drizzle I didn’t get wet and at no point felt the need to reach for my waterproof.

    The jersey has some outstanding features: the long sleeve length and elasticated cuffs means that you can tuck them into gloves to keep the cold out; the body length is good and ensures that the lower back is protected; the high collar keeps your neck warm; the rear zipped pocket easily swallows up an iPhone SE ( the new larger version). So, all-in-all, a great success!

    Roderick Inglis
    1st time purchaser

    Top notch. Great quality and keeps me toasty warm.

    Stuart Cullum
    Exactly what I needed for winter

    Keeps me warm, looks stylish, exactly what I need for winter riding.

    Jim Elliott
    LS AutumnWinter Jersey

    Good quality. Sleeves a tad long but I can live with that.

    Mark N.
    Absolutely Spot On

    I normally cook on climbs and freeze on descents then return home with a base layer drenched in sweat. I took this jersey out on a hilly ride today at about 6 degrees and it was awesome. It strikes the right balance between not overheating on the climbs and not getting cold on the descents and for the first time - no cold soaking wet base layer at the end so it is really breathable. Well impressed and will look to get another. I’m 90kg, 6’4” and the XXL is perfect.