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Men's Heatshield Long Sleeve Top

Item # FA1983

Polartec® Power Dry® pulls moisture directly from the skin and transfers it to the outer surface to quickly dissipate. This continuous evaporation process helps to keep you cool, as your body heat increases and warm when temperatures begin to drop. The technology used to control moisture is the highest priority for baselayers and next-to-skin surfaces, making the Heatshield long sleeve the ultimate cycling baselayer.

Availability: In stock



Select a size:

Size and Fit Guide Fit: Slim fit

In stock


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Performance Features

  • First Ascent UPF50

    UPF garments are specifically designed for sun protection and are produced from a fabric rated for its level of ultraviolet (UV) protection

  • First Ascent Polartec

    These fabrics create unparalleled quality and durability. Their warmth without weight makes them the industry standard for high altitude mountain ascents.


  • Superior wicking and fast drying for added comfort
  • Highly breathable
  • Lightweight, easy care fabric for hassle-free washing
  • Earphone loop to stay connected
  • UPF50+ protection




Weight (kg)


Designed for

Cycling, Mountain biking, Road, Road cycling, Running, Trail


Slim fit


Autumn, Spring, Winter

Breathable material


UPF Rating


Moisture wicking material


Quick drying material


Fabric Composition

100% Polyester



Wash and Care Instructions

Wash like colours together.
Machine Wash Only

Machine Wash Only

30°C Cold Water Only

30°C Cold Water Only

Do Not Tumble Dry

Do Not Tumble Dry

Do Not Dry Clean

Do Not Dry Clean

Do Not Use Softener

Do Not Use Softener

Do Not Bleach

Do Not Bleach

Do Not Iron

Do Not Iron


Do you own this product? Let us know what do you think about it.

"Cape Town must have item"

No doubt in my mind that this should be the most sought after item on the First Ascent catalogue. Works for everything - you can run, sleep, chill and swim in it. Drys very quickly and takes up no space in your hydration pack.

Eddie, 21 Jul 2020

"Amazing item"

I didn't quite understand baselayers before I brought this, but now I do. Normally quite hesitant to wear an extra layer when running and riding as I overheat very quickly after the first km or two, even on chilly mornings. I find this Heatshield to be an incredible garment, keeps me warm when it's chilly then works with the body to ensure I don't overheat when warming up. I'm not sure how this is even possible, but this really is an unbelievable garment for those chilly days, even when it heats up! Great job guys

Steve, 20 Jul 2020

"Heat Shield review"

Best purchase I've made this winter. Very impressed with this garment and how it manages to keep me comfortable and dry on my cold wet morning rides and runs for that matter. I've doubled up on both the long sleeve and vest option! Thank you First Ascent!

Gerald, 24 Jun 2020

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