Women's Mesh Sleeveless Cycling Base Layer - Front View
Women's Sleeveless Cycling Base Layer - Summit Back View
Women's Sleeveless Mesh Cycling Base Layer - Summit Fabric Close-Up
Women's Mesh Sleeveless Cycling Base Layer - Summit
Women's Sleeveless Cycling Base Layer - Summit on the Road
Women's Mesh Sleeveless Cycling Base Layer - Front View
Women's Sleeveless Cycling Base Layer - Summit Back View
Women's Sleeveless Mesh Cycling Base Layer - Summit Fabric Close-Up
Women's Mesh Sleeveless Cycling Base Layer - Summit
Women's Sleeveless Cycling Base Layer - Summit on the Road

Women's Summit SL Base Layer

$75 $38 Save 49%
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Stay cool and comfortable on summer rides with the Summit Base Layer featuring active cooling from 37.5® Technology where tiny Cocona particles woven into the fabric pull heat and moisture away from your skin. Scroll down to learn how 37.5® can increase athletic performance by as much as 26%.
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This ultra-lightweight, super stretchy base layer has been designed to provide a performance form fit and optimal moisture transfer and heat regulation during warm weather rides. The honeycomb structure of the knit not only wicks perspiration away from the skin but it also facilitates air movement between the jersey and base layer which speeds evaporation and cooling. Only 55 grams in a size medium. 

What sets this base layer apart from all the others is the use of woven Cocona particles from 37.5® Technology. Those amazing, little particles attract humidity and use your body heat to rapidly transfer perspiration from the interior to the exterior of the garment. This rapid transfer of moisture ensures a regulated body temperature and can increase athletic performance by as much as a 25% (results based on an independent University of Colorado study). This means you can ride longer and harder while staying cooler. Learn more at www.thirtysevenfive.com.

•Summit mesh (88% 37.5 Pro Polyester, 12% Spandex)
•Honeycomb texture to maximize wicking performance
•37.5® Technology for cooling efficiency
•Next to skin form-fit design

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37.5 Video Clip 2
stay cool. ride further.

37.5®

Tiny Cocona partcles from 37.5® interact with your body heat and perspiration in a way that assures you stay dry and comfortable.

The Active Cooling from 37.5® Technology Increases Athletic Performance By Up to 26%

"Wearing a combination of a 37.5 jersey and base layer is the equivalent of wearing an ice vest when it comes to enhanced individual performance." — Preston Brin, 37.5®

In a study done by scientists at the University of Colorado Boulder, thermoregulation clothing with 37.5 Technology was scientifically proven to increase athletic performance by up to 26% by reducing the increase of core temperature during activity. Proven to decrease the rate of core temperature buildup and keep you cool more effectively than wicking. Scientifically proven to increase stamina by reducing the amount of energy used to manage core temperature. Proven to increase efficiency so you use less energy to do the same amount of work.

Learn more about 37.5®

Earth-Friendly Garment

The Summit Base Layer is constructed entirely with recycled lightweight and breathable body fabric.

Our development team has made it their number-one goal to source premium, high-performance recycled fabrics to ultimately reduce our carbon footprint.

LEARN MORE ABOUT OUR SUSTAINABILITY EFFORTS

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