Short-sleeve lightweight merino wool base layer to wear under a Gabba or jersey for cool rides.

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Before you assume that all baselayers are created equal, take Castelli's Core Mesh 3 Short-Sleeve Baselayer out on a summer ride with an open mind. Rather than focusing on providing breathable insulation, a warm-weather baselayer like the Core Mesh 3 actually helps you stay cooler. The crew-neck...

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The days that you feel a slight chill when you step outside are often the toughest to dress for. The sunny skies suggest you'll quickly warm up, but you don't want to spend the first several miles of your ride fighting off a chill. For rides like this, grab Castelli's Pro Issue Base Layer. This...

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Active Extreme X Wind SS is a highly functional baselayer tee with wind protection at front designed for racing and high-intensity workouts in cold and windy conditions.

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Extending Enduras product selection featuring Primaloft technology, the Transloft offers the holy grail of temperature regulation keeping you warm on cold days without overheating when the pace or the mercury goes up!Multi sport base layers have their place, but thats not on a bike! Endura's base...

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Made with innovative Resistex Bioceramic technology, the Ceramic Short-Sleeve Baselayer bonds microfiber material to mineral bio-ceramic crystals that reflect Far Infrared Rays. In the summer, this creates a heat barrier that helps lower the fabric surface temperature for a cooling effect. The...

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Even on our hottest rides, it's best not to go out with only bibs. The Giordana Lightweight Tubular Knit Short-Sleeve Baselayer Top provides the lightest layer possible, and even as we break a sweat, we stay dry for maximum comfort. The secret is Dryarn fibers in a tubular knit, packing in...

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Short sleeves means this version has all-season versatility. Just like the sleeveless version, you'll get fantastic sweat-wicking--essential for staying comfy in any season. Temperature regulation starts with dry skin, and Giordana's base layer gets it done with reliable efficiency.

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You've put in a lot of base miles to get where you are on your bike, and it's worth rewarding yourself every so often with kits that are built to ride as hard as you do. Gore Bike Wear's Alp-X Shorts are built to handle it all, with an outer shell that resists abrasion, and plenty of flexible...

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These boxer shorts are a basic, but essential base layer to work with your outer layers to ensure their best performance. With a high back to ensure optimal fit and made from a wicking material for better moisture management they are ready for any form your adventure takes. Ideal for active...

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