Great insulated jacket
I bought the Oakley Sierra Insulated Jacket 2023 in Dec 2024 and took it to Niseko, Japan for two weeks in Feb 2025. Overall it is a great jacket with plenty of warmth and I'm happy with my purchase. I was happy wearing just a merino t-shirt underneath in temps as low as -20 including windchill. There are two things I would add to or change about this jacket if I could. The first is there is no hole between the outside chest pockets and the inside of the jacket for a headphone cable to pass through, I would have really liked this as the chest pockets are the best place in this jacket to keep a phone but I still use cabled helmet headphones so had to keep my phone in the unzipped pocket on the inside of the jacket. The second thing I would change is I would make the hand pockets on the front angled rather than horizontal with a flap on top of the zip. it's just not as comfortable if you want to keep your hands in those pockets. Lastly, please note the red colour is not as vibrant a red as it shows in the photos on the listing, it is quite a dark red as the colour name "Iron Red" implies.