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Gore Bike Wear Base Layer Windstopper Shirt - Long-Sleeve - Men's

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Item # GBW3266

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Item # GBW3266

Start warm, stay warm.

Whether you’re riding in hot weather or cold, your body is producing moisture. Efficient moisture management is extremely important in any weather because your body fatigues much more rapidly with even slight variations in core temperature, which fluctuate more based on perspiration. The Gore Bike Wear WS Thermo Base Layer is specifically designed for use in the cooler months to maintain your core temperature through efficient moisture management and windproof protection.

There are really two parts to how the WS Thermo Base Layer helps your body maintain its core temperature while you ride. The first is moisture management. Your body has a much more difficult time regulating its temperature when your skin is wet. The combination of an internal hydrophobic fabric (100% polyester) with an external hydrophilic fabric (100% polyester) pulls moisture away from your body to keep your skin dry and aid in temperature regulation. The second part is protection from the weather. Gore uses WindStopper windproof membrane to shield your skin from wind and help your body maintain its core temperature. These two aspects of Windstopper fabric work together to increase your efficiency and performance.

The WS Thermo Base Layer increases comfort in other ways, as well. Mechanical stretch panels (88% polypropylene, 8% elastane, 4% nylon) ensure maximum range of motion and increase durability by stretching instead of tearing. Gore designed the WS Thermo with as few seams as possible, since they cause irritation. Where seams were necessary, Gore used flatlock seams, which cause less chafing than the traditional variety. Finally, Gore designed the WS Thermo with a low cut back to give you full coverage in the seated position.

The Gore Bike Wear WS Thermo Base Layer comes in White/light grey or Black. It’s available in sizes Small to XX-Large.

Tech Specs

[front, sleeves, and shoulder face fabric] polyester, [front, sleeves, and shoulder membrane/laminate ] Windstopper, [back and underarm stretch inserts] 88% polypropylene, 8% elastane, 4% nylon
form fit
Recommended Use:
road cycling, mountain biking, breaking that windchill
Manufacturer Warranty:
1 year

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...



  • Fit:True to size

Size chart of perfect for a snug fit.
Wind blocker base layer is effective.
Looks good too!

Avg. ride time: 1h 14m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Warmth for cold days

  • Familiarity:I've put it through the wringer

Have a couple of these shirts after years of trying out others. Will be my go to base layer on cold days from now one. Stays dry and warm even on long rides. Really stops the wind from cutting through. Fit is a little tight in shoulders but sits close to the body to help keep that warmth in.


Buy this or freeze to death

  • Familiarity:I've put it through the wringer

Unless you live in Florida, Arizona, Texas or Southern California, you need this undershirt. It will save you from freezing on chilly rides, it's amazingly versatile, it feels great, dries quick and is truly windproof. They're re-designed it since the last model I wore so it doesn't turn into a beating wet sail against your skin, instead the two-layer construction is comfortable. It's a bit tight, but think of it as a reminder to keep your beer consumption to a modest level, buy, ride, enjoy and repeat. Stay warm out there.

Avg. ride time: 3m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Early review...very different than Craft

  • Gender:Male
  • Familiarity:I've used it once or twice and have initial impressions

I ordered both the Craft and Gore longsleeve windstopper baselayers. Sizing: Gore runs smaller. My 5'7" 140 fits the medium gore perfectly but the craft medium is too big and too long. Also the Gore feels much nicer against the skin. The gore also has more windstopper material as it runs down both sleeves. The craft only covers your core/trunk with windstopper. Both have a non-windstopper back so it breaths well. I don't have any rides in it yet but wanted to relay the sizing and also the feel of each. The gore windstopper feels more soft as the craft more "crinkly". I wanted something that helps down to upper 30's and mostly 40's. Both should work. I suspect the craft will help in colder conditions but only the core as it has no windstopper in the sleeves. The craft is thicker, heavier and the neck is much tighter (as with all craft base layers); craft wants to keep the wind from going down your neck but my other crafts irritate my neck too much. I'll keep the Gore for my purposes. The neck is more open but not by much; easier to take on/off and feels more like a fine soft jersey. The forearms are snug; these may loosen up over time. After reflecting on the neck you will probably want to ride with a neck gator or bandana if cold as I suspect the gore will let more air in.