Stio Trax Power Grid Half Zip Hoodie Review

Stio Trax Power Grid Half Zip Hoodie Review by Erin Trail The Stio Trax Power Grid Half Zip Hoodie is designed to be a lightweight, breathable layer that’s suitable for all four seasons. Features Made from Polartec® Power Grid™ fabric Flatlock seams maximize comfort and ease of layering Action gusset for range of motion Thumbholes…

Erin Trail

August 11, 2025

4–6 minutes

base layer, everyday, polartec, stio

Stio Trax Power Grid Half Zip Hoodie

Review by Erin Trail

The Stio Trax Power Grid Half Zip Hoodie is designed to be a lightweight, breathable layer that’s suitable for all four seasons.

Features

Made from Polartec® Power Grid™ fabric
Flatlock seams maximize comfort and ease of layering
Action gusset for range of motion
Thumbholes for easy layering
Concealed rear hip zipper pocket for small essentials
Fixed hood with elastic binding at opening

Detailed Review

The Stio Trax Power Grid Half Zip Hoodie is a lightweight Polartec® layer that’s been fantastic for spring and summer adventures. I got a size medium and feel that it fits true to size. The fit is pretty traditional, with the bottom hem hitting mid-hip.

The Stio Trax Power Grid Half Zip Hoodie is made for nearly any kind of activity when you want a lighter layer with a bit of warmth. The Polartec® Power Grid™ fabric is truly unique. It has a light texture and grid pattern on the inside of the garment; the grid looks lightly textured on the exterior side. The fabric is light enough to see through, but with thanks to the Power Grid™, the fabric provides just the right amount of warmth for mildly cool temperatures.

I got the Stio Trax Power Grid Half Zip Hoodie in April, which is when Colorado cannot make up it’s mind for the weather. I was grabbing this hoodie nearly any chance I could, wearing to the gym for my morning swim sessions, wearing it as a layer when camping out in the western Colorado desert, wearing it nearly anytime I needed a light layer in cooler conditions.

The Stio Trax Power Grid Half Zip Hoodie and I officially became BFFs on my recent trip to Spain. I packed it as a light layer in my carry on, thinking it might come in handy. Thanks to some truly nightmare travel, my 20 hour journey to Spain took 60 hours. The Stio Trax Power Grid Half Zip Hoodie was the perfect layer. It packed down into my shoulder bag carry-on for easy stashing. And it was exactly what I needed on those long, cold flights over the Atlantic and across Europe. It was incredibly comfortable – and comforting – in a really challenging travel situation.

Stio Trax Power Grid Half Zip Hoodie Review 1 — 60 hours of travel and arriving at the hotel in Spain at 3:30 AM.

As I move into fall, I feel confident that the Stio Trax Power Grid Half Zip Hoodie will be a solid choice as I move into mountain biking and fall camping. The hoodie packs down well, making it easy to bring in a pack or a day bag.

The Stio Trax Power Grid Half Zip Hoodie is available in both men’s and women’s lines as either a hoodie or a crew shirt. There are several colorways to choose from. Men’s sizing ranges from S to XXL, women’s sizing ranges from XS to XL.

Erin Trail

Trail Boss of Stoke

Erin Trail’s hobby is collecting hobbies. She’s a 5th Generation Coloradan and grew up exploring the outdoors on family camping trips and hikes. Her first backpacking trip was at eight years old to Grizzly Reservoir – she proudly carried all of her own gear those 3 miles from the main parking lot to the Reservoir.

Erin is an adult-onset athlete who started as a Masters Swimmer and then developed into a triathlete. She has completed 5 Ironman races and nearly 20 x 70.3 distance Ironman races, including the World Championship in Lahti, Finland, in 2023. In 2025, she raced for Team USA in Pontevedra, Spain for the World Triathlon Cross Tri World Championship and placed 9th in her age group and was 1st American women in her age group.

Erin Trail Spain Bike — Erin Trail on her mountain bike at the World Tri Cross Triathlon World Championship race

Stio Trax Power Grid Half Zip Hoodie Review 2 — Erin Trail on her running at the World Tri Cross Triathlon World Championship race

Somewhere along her triathlon journey, she picked up deep love of cycling. Cycling encouraged her to see landscapes in a new way, learn new skills and to develop self reliance; now she often goes and does Type 2 rides just to see if she can do it. She’s got all the bikes: gravel, mountain, fat bike, time trial and road.

She is even known to combine her love of camping and cycling and go off on solo 24 hour overnight bikepacking trips in the mountains of Colorado. In addition to bikes, she teaches yoga, lifts weights, skis, SUPs and has recently purchased a campervan.

Erin is a former Montana park ranger with a degree in environmental engineering. She loves getting into technical details while putting her gear (and herself) through the paces. She shares her home in Colorado with her husband, Will, and her 3 cats (Zipper, Brewtus, and Simcoe).

Fall and winter 2025 will bring Erin to the “Adventure Side”, with many camping, vanlife, bikepacking, and mountain bike rides. Once the snow flies, she can be find resort skiing, fat biking, and triathlon training (inside and outside).

2026 will bring a National Championship Cross Tri race, a National Championship Road Sprint and Olympic Distance race, and hopefully a chance to represent Team USA once again in 2027 in Edmonton, Canada. She’ll also save lots of room for adventure time with her friends and husband.

When not adventuring, she can be found on a sunny patio somewhere, drinking beers with her husband.

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