Dynafit Ultra Light 3L Jacket Men

The Dynafit Ultra Light 3L Jacket is a featherlight men’s shell designed for ultra-marathons, alpine running and training. Show more >
RRP: $233.94
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Dynafit Ultra Light 3L Jacket Men

The Dynafit Ultra Light 3L Jacket is (you’ve guessed it) a featherlight men’s running jacket designed for ultra-marathons, alpine running and general trail running. While not technically a jacket, more of a long-zipped pullover, the Dynafit Ultra Light 3L Jacket is designed to provide the optimal combination of weight, packability, breathability and protection. This is all thanks to Dynafit’s Dyna-Shell three-layer fabric, which is highly waterproof and breathable, as well as super light, making this jacket easy to stuff into your pack and forget about until you really need it. Other useful features include elasticated cuffs for extra protection, perforated underarm ventilation and a smartphone pocket.

Tech specs

FIT Athletic
MAIN MATERIAL(S) Dyna-shell 3L (100% polyamide)
SHELL MATERIAL(S) Dyna-shell 3L (100% polyamide)
POCKETS INTERNAL Smartphone pocket


Ultra Light 3L Jacket Men

Full Features List

• Dyna-shell 3-Layer is windproof and rated 20k / 20k waterproof and breathable
• Lightweight
• Packable into hood
• Protected underarm mesh ventilation
• Taped seams
• Elasticated cuffs and hood
• Internal smartphone pocket
• Reflective stripe

Ultra Light 3L Jacket Men


Dyna-shell is Dynafit’s premium weatherproof, breathable fabric, rated 20k / 20k. Similarly to Gore-Tex Active, it is completely waterproof and windproof, incredibly lightweight, super breathable and packs down very small, which makes it ideal for fast and light sports such as running, cycling, and speed mountaineering.

Ultra Light 3L Jacket Men


The DWR (Durable Water Repellent) finish has become almost ubiquitous in the outdoor industry, and the satisfying water beading it provides has become the hallmark of a beautiful jacket. It is not strictly waterproof but will provide protection on its own against a light shower; however it does wear off so needs to be topped up from time to time. The DWR stops water from soaking into the outer layer of waterproof fabrics like Gore-Tex meaning they remain breathable and light in even in heavy rain.

Ultra Light 3L Jacket Men

Taped Seams

Taped seams are where the seams in a garment have been sealed with a special tape on the inside of the fabric, which prevents water leaking through via the stitching.

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