Is this hoodie warm enough for cold weather?

It is mid-weight fleece, warm for cool mornings, gym warm-ups and layering. It is not insulated or windproof, so it is not a substitute for a jacket in freezing or windy conditions.

Can I wear it for running or the gym?

Yes. The quarter zip lets you open the neck to cool down mid-session, and the fleece moves with you. It is warmer than a tech tee, so it suits warm-ups and cool-weather runs rather than hot indoor workouts.

How does it compare with a plain quarter-zip fleece?

The main additions are the hood and the striped pattern. A plain quarter-zip is lighter and easier to layer under a jacket; this one gives more warmth around the head and neck.

What are the hidden pockets like?

The pockets are built into the fleece and sit out of sight, which keeps hands warm and small items tucked away. They are less quick to reach than open side pockets.