Skip the middle man.
Riding a wave of windproof, water-resistant, breathable race wear, Gore Bike Wear's Windstopper fabric recently revolutionized the cycling industry. With the new Thermium material at the heart of the One Gore Thermium Jacket, the venerable outdoor manufacturer may be poised to do it again. Thermium is basically a Windstopper membrane with the addition of built in insulation, a construction that effectively eliminates the need to pile on multiple base layers while still guaranteeing that your thermal layer stays dry in all but the harshest deluge. Several hundred general outdoor manufacturers have already added the membrane to their repertoire, but the appropriately named One Gore Thermium Jacket is the first instance we've seen of it in the cycling world.
As with all quality kit, the details matter, and Thermium's details are impressive. It's a two-layer, windproof, water-repellent, breathable laminate with taped seams—in short, pretty similar to insulated versions of Windstopper. The key difference is that Thermium's insulated layer is upgraded to 80g of Primaloft Gold, making it warmer and higher quality than the stuff used in standard Windstopper. One detail to note is that, unlike Gore-Tex, Gore Thermium isn't waterproof; it's just extremely water-repellent. For cycling, this basically means that it's equal to any kind of weather you'd actually want to be on a bike in. It's also more than capable of handling weather that would make most of us pull over and seek shelter or call up the significant other for a ride home. If you happen to ride into a lake, though, you'll probably get wet.
We should note that the One Gore Thermium's extreme wind, water, and cold-protection mean that it's only applicable to, well, the most extreme conditions we'd want to ride in. The Primaloft/Windstopper combination packs a wallop that won't see much use outside of winter's depths; however, if you're one of the brave souls who the local news profiles for commuting through blizzards or you happen to have a snowy bikepacking trip planned to celebrate the New Year, then the One Gore Thermium may be ideal for you. In the event that its 80g of Primaloft are outclassed by the weather, the jacket is cut to be more accommodating than Gore's race-fit stuff, so you can layer up even more with the confidence that the breathable, water-repellent membrane will keep your thermals dry.
The One Gore Thermium is finished with a few details that further recommend it for the deepest darks of winter. These include top to bottom coverage courtesy of a hood with an integrated headband and a dropped rear hem. The sleeves get in on the act with cuffs shaped specifically for cycling, and a zippered rear pocket keeps essentials accessible while everything else rides underneath in a jersey pocket or stuffed into panniers. Finally, reflective detailing on the back and sleeves helps keep you visible in dark, chilly conditions.
- A cycling jacket featuring the peak of Gore technology
- Thermium combines elemental protection with insulation
- Primaloft insulation maintains a warm microclimate
- Adjustable hood with incorporated headband
- Wave-shaped cuffs for coverage while in the saddle
- Storm flap and port for full-length zipper
- Zippered rear pocket keeps essentials close at hand
- Reflective elements help keep you visible in low-light conditions
- Item #GBW007L
- Q & A
Gore Thermium Jacket-Stay warm
- Fit: True to size
- Size Bought: medium
This jacket has amazing warmth for all winter activities such as cross country skiing, hiking, biking or just walking outside in cold weather. I saw it in a bike shop and thought it was way too expensive for a bike jacket and much to light to be warm. On a lark I tried in on, looked great so I took it outside where it was about 20 degrees with a 20 mile per hour wind. I felt no chill, no wind and zero cold. The 80 gms of thermo-loft is super light and amazingly warm. The gore material is 100% wind proof. I use this jacket for any activity over freezing and since its so light and soft as a layer under a shell for downhill skiing as well. I have not used it under very intense activity like road biking so I don't know how it breaths but the specs indicate its probably fine. It looks so good I hate to get it all sweaty. Have many other biking jackets for that.