Slightly different fabric but otherwise identical. From what I read, Cormac breathes slightly better and doesn’t pill as much. But I can’t verify from experience.
I have both and I used Echo in New Zealand. Echo (I have dark blue one) is somewhat super light and is great for running, but definitely lacks in sun protection (you can see right through Echo's material). I also have Cormac in the same color as Life Hiker. Well, it is definitely not as breathable as Echo and you will sweat in summers depending on where on this planet you are atm (not as much in Sweden compared to Africa I guess). I am right now in Melbourne and used Cormac this past summer. Cormac is more durable and definitely offers you higher sun protection rating (material is denser). One thing to mention is if you are wearing a baseball cap under the hoody,, then you can turn your head into the wind and it will funnel the air under the hoody inflating it and providing you quite a bit of ventilation. Note that New Zealand and Australia have the highest incidents of skin cancer in the world, so I definitely pay attention to this stuff haha. Hope this helps :)
Stay tuned for a video on extreme hot weather clothing. I have been wearing the Arcteryx Ionia Merino Wool shirt for hot summer hikes. I also like the UA Elevated Woven 2.0 Shorts. Under Armour seems to make good shorts in my opinion.
