For the hottest of rides the Castelli Core Mesh 3 base layer actively draws moisture from the skin as well as allowing for maximum airflow so your body remains as close as possible to it's optimum temperature allowing you to perform better for longer. ...

Castelli Core Mesh Short Sleeve Base Layer: A minimalist base layer for fast, cooling moisture transfer & freshness on hot summer endurance rides. Fully open mesh holds the jersey off of skin & the resulting layer of air works to regulate body temperature. The next-to-nothing base layer This is the perfect minimalist piece to keep you cool in warm weather. The fully open mesh serves mainly to hold the jersey off the skin, creating a layer of air between your skin & the jersey to help you maintain a constant body temperature. The fabric absorbs almost no moisture, & it weighs next to nothing. View a larger copy of this image for a more detailed view. Fully open mesh creates a layer of air between your skin & jersey Body wrap design wicks away moisture Minimal seams for maximum comfort Sublimated logo Cut long to stay tucked into your shorts 68g (Large) ...

The next-to-nothing base layer This is the perfect minimalist piece to keep you cool in warm weather. The fully open mesh serves mainly to hold the jersey off the skin, creating a layer of air between your skin & the jersey to help you maintain a constant body temperature. The fabric absorbs almost no moisture, & it weighs next to nothing. View a larger copy of this image for a more detailed view. ...

Castelli Core Mesh Sleeveless Base Layer: Minimalist piece for warm weather usage. Fully open mesh holds the jersey off of skin & the resulting layer of air works to regulate body temperature. Coupled with very little moisture absorbing, this base layer stays cool & light. Sleeveless version The next-to-nothing base layer This is the perfect minimalist piece to keep you cool in warm weather. The fully open mesh serves mainly to hold the jersey off the skin, creating a layer of air between your skin & the jersey to help you maintain a constant body temperature. The fabric absorbs practically no moisture, & it weighs next to nothing so it wont weigh you down. View a larger copy of this image for a more detailed view. Fully open mesh creates a layer of air between your skin & jersey Body wrap design wicks away moisture Minimal seams for maximum comfort Sublimated logo Cut long to stay tucked in shorts 60g (Large) ...

The next-to-nothing base layer This is the perfect minimalist piece to keep you cool in warm weather. The fully open mesh serves mainly to hold the jersey off the skin, creating a layer of air between your skin & the jersey to help you maintain a constant body temperature. The fabric absorbs practically no moisture, & it weighs next to nothing so it won’t weigh you down. View a larger copy of this image for a more detailed view. ...

Castelli have re-engineered the traditional base layer to make this, the Core Seamless Base Layer perform better than ever. Many seamless base layers use a mixture of Lycra & Nylon but these hold a lot of moisture. Not good for comfort. Instead, Castelli uses a blend of polyester & polypropylene yarns to quickly move moisture off the skin with very little moisture uptake. This offers excellent temperature regulation while also being extremely soft & comfortable against the skin. It's not for the very hottest of cycling conditions but in cooler & mild conditions, worn as your first layer under long or short sleeve jerseys, it really does excel. ...

The Core Seamless Long Sleeve Base Layer slips under your cold-weather cycling kit to provide both extra insulation & to ensure sweat isn’t left on the skin to chill you down. With moisture quickly wicked away, you’ll enjoy more warmth & less clamminess. Meanwhile, the seamless construction boosts comfort & the wider neck makes it good even for shorter-collared long-sleeved racing jerseys, ideal for your early season racing & training. ...

Light & yet surprisingly warm, the Castelli Core Seamless Long Sleeve Base Layer is ideally suited to cool-weather cycling conditions. ...

Light & yet surprisingly warm, the Castelli Core Seamless Long Sleeve Base Layer is ideally suited to cool-weather cycling conditions. ...

Short-distance race suit for speed & comfort Endurance Evolution fabric is lightweight but supportive Close-cut top with longer legs Reduced seaming for faster swims Rear envelope pocket stays closed in the water but makes it easy to carry a gel Fleece seat liner smooths out the bike ride but disappears on the run Weight:170g ...