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Castelli Men

Men's Core Mesh 3 Sleeveless

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Core temperatures stabilized.

It might seem counter-intuitive to add a layer when the temperature is spiking, but with Castelli's Core Mesh 3 Sleeveless base layer wicking away your sweat away you'll never go back.

Designed for long miles in the height of summer Castelli opted to use their new Magic Mesh fabric, constructed from 100% polyester fibers for an incredibly breathable moisture-wicking fabric. Featuring a nearly seamless design to keep chafing to a minimum, this base layer sits next to your skin to provide constant moisture management.

Note: Castelli tops and bottoms are designed with a performance cut that often runs smaller than that of other manufacturers. Consider sizing-up one size to ensure a comfortable fit — e.g., if you normally wear a Medium, select a Large in Castelli. Feel free to contact us with any questions or concerns.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Sleeve Type: Sleeveless 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
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1 stars
Not a good buy
by Anonymous
Cycling Enthusiast
San Diego, CA

fits very tight and very uncomfortable was not a good buy for me

Reviewed 3/14/2020
TriSports.com Comments
Hi there, sorry this item didn't work out. Feel free to reach out to us to share some more details about your experience or arrange for an exchange. -The BTD Team
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a true base layer
by JDD
Cycling Enthusiast
Sonoma County, CA
1 of 1 customers found this review helpful.

The core mesh creates an isolating layer that promotes warmth in the cold and allows heatmoisture to escape when the morning ride heats up. It fits snuggly like all Castelli products. Only drawback is the tag placement on the side, needs to be removed.

Reviewed 9/16/2019
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Cool and tough underlayer - best underlayer I've owned.
by James
Cycling Enthusiast
Northern Virginia
2 of 2 customers found this review helpful.

Love the fit though it is cut extremely thin. I normally wear a small but had to get a large in this size.

Reviewed 8/31/2017
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