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Castelli Core Seamless Long-Sleeve Base Layer - Men's

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Men's Bike Baselayers we have in stock.

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Core Seamless Long-Sleeve Base Layer

As a warmer and arguably more comfortable alternative to their well-placed and beloved Prosecco Tech base layer, the Castelli Core Seamless Long-Sleeve Base Layer is well…seamless. The soft and synthetic blended fabric form-fits to comfort and work under more substantial winter riding jackets. Castelli provides the Core with exceptional wicking power and warmth, and it's rated to perform down to 39 degrees F — a four degree reach lower than the Prosecco Tech. A lighter weight weave is used on the side and the back to provide uniform insulation when considering you'll tuck this under bib straps that have a certain level of insulation built into them. And for those who are part of the gram-watcher club, The Core does register 43 more grams on the scale than the Prosecco, which may help in determining which Castelli layer best suits your goals.

  • Castelli's seamless long-sleeve base layer for cool to cold riding conditions
  • Synthetic blend fits close to body and works well with winter jackets
  • Lighter weight construction on sides and back for enhanced comfort
  • Wide neck hides away from jersey collars to remain unseen
  • Rate for efforts outside in 39-61 degrees F
  • Item #CSTZ7CW

84% polyester, 16% polpropolyene
Claimed Weight
[large] 194g
Recommended Use
commuting, cross-country, enduro, road cycling, trail
Manufacturer Warranty
1 year

Tech Specs

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