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Castelli Pro Mesh Sleeveless Baselayer - Men's
CastelliPro Mesh Sleeveless Baselayer - Men's

Layer with strategy.

It's tempting to ditch every extra layer as soon as the sun comes out and late spring officially takes hold, but riding with a baselayer can still make a big difference in temperature management and breathability. On a warm spring morning with a cool breeze, layer the Castelli Pro Mesh Sleeveless Baselayer under your jersey. Rather than being weighed down by the extra layer, you'll enjoy faster moisture transfer with the addition of ultralight mesh fabric next to your skin, helping you stay drier as you heat up in variable temps.

  • Ultralight baselayer improves breathability on your rides
  • Form-fitting cut won't ride up under a jersey and shorts
  • Airy mesh fabric keeps moisture off your skin
  • Reviews
  • Q & A

Snug fit—euro sizing

    Consider ordering a size up as these run small. I do love this brand—their stuff is solid and holds up well.

    Fantastic baselayer

    • Familiarity: I've put it through the wringer

    Great garment. I love the designs, even if most people aren't going to see it. For me, it didn't run as small as I was expecting, but I wouldn't size down. I've used this on super hot days under a jersey, and it worked out well to keep me cooler, as well as cooler days for an extra layer.

    Basel Layer - awesome piece

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: Large

    Awesome piece to add to your cycling attire

    Castelli sleeveless base layer

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: XXL

    Great for summer rides. I bought XXL but should have gone with XL. I plan on ordering more in the future.


    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: XL

    Love to get a little crazy with your kit color palette but don't want the world to see? This may be the item you are looking for. Oh and it wicks away moisture to keep you cool and all that other fancy stuff. Here is the tricky part, most people size up for Castelli but I have found that that with their base layers they fit true to size.