Men's Base Layers

The Craft Men's proWARM Crew Long Sleeved top is the cold weather piece. The proWARM material is a highly functional, lightweight base layer designed for intense aerobic activities on cold winter days. There are hollow fibers that trap air and provide View more...

The Craft Men's proZEROextreme Crew Long Sleeved is designed from the Craft experts to keep you dry and comfortable. This technology is to benefit you in fair and cold conditions. The proZERO extreme fabric is made of thin, lightweight and extremely e View more...

The Craft Men's proZEROextreme Short Sleeved is designed from the Craft experts to keep you dry and comfortable. This technology is to benefit you in fair and cold conditions. The proZERO extreme fabric is made of thin, lightweight and extremely elast View more...

The Craft Men's proCOOL Long Sleeve V-neck has brand new technology for this season. The Craft base layer is a story that TriSports.com is excited to tell. The base layer concept is not new but boy has Craft perfected it! This shirt is great for under View more...

The Craft Men's proCOOL Sleeveless has brand new technology for this season. The Craft base layer is a story that TriSports.com is excited to tell. The base layer concept is not new but boy has Craft perfected it! This shirt is great for under that cy View more...

The Craft Men's proCOOL Mesh SL Sleeveless has brand new technology for this season. The Craft base layer is a story that TriSports.com is really eager to tell. The base layer concept is not new but boy has Craft perfected it! This shirt is great for View more...

The Craft proCOOL Compression Sock is the first of its kind. The compression fit over the calf muscle is to reduce muscle vibration and focus power. There is a channel stitching structure that allows warm air to circulate for temperature regulation. T View more...

The De Soto Men's Skin Cooler Base Layer is the coolest undershirt you will ever own! It is intended to be worn beneath your cycling jersey, but can just as effectively be worn alone as a tri top or running top, or even beneath a dress shirt for those View more...

The ultimate base layer for cold and windy conditions. The Craft Men's proWindStopper Gore Long Sleeve features Gore's lightest ever windproof, 4-way stretch fabric panel to date. Gore WS is strategically applied to Pro Zero fabric in order to maximiz View more...

The Craft Men's Pro Cool Sleeveless Tee is a relaxed fitting tee that utilizes that same technology as our famed summer weight base layers to keep you cool and dry in the hottest conditions. ProCOOL features a revolutionary multichannel hollow polyest View more...

The Craft Men's Pro Cool Mesh Sleeveless base layer keeps your body cool and dry during exercise indoors or in warmer condition. ProCOOL base layers are 30% lighter in 2008 than in previous years and now feature an antimicrobial treatment to prevent f View more...

The Craft Men's Pro Zero Long Sleeve Crew keeps your body dry and comfortable during exercise in cool and cold conditions. The core of Craft's elite layering system, Pro Zero fabric adheres to your body like a second skin. Featuring internal air chann View more...

The DeFeet Un-D-Shurt Short Sleeve is an excellent under layer for warm or cool weather. The DeFeet Un-D-Shurt Short Sleeve keeps you warm in the cooler weather and keeps you cool in the heat by wicking moisture from your skin to the surface of the fa View more...

The DeFeet Un-D-Shurt is one of the most widely used base layer garments for professional cyclists around the world. But why should they be the only ones who are comfortable? Once you have worn this top, it will be your favorite, too! Made of MicroSu View more...

Keeps your body cool and dry during exercise indoors or out in warm conditions. The Craft Men's proCOOL T with Mesh is our newest base layers are 30% lighter than previous seasons and now feature an antimicrobial treatment to prevent fabric odor from View more...