Castelli Pro Issue Womens Cycling Sleeveless Base Layer

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

The Pro Issue W base layer is designed to wear under your cycling jersey on cooler race days - or slower rides in warmer weather. Unlike our core mesh, the Pro has a 3D filled in mesh making it excellent at wicking moisture from the skin. This, in turn, keeps you drier and more comfortable than not wearing a base layer and balances out the hot sweaty up / cold damp down phenomenon you often get with cycling in the wrong clothing. 

Key Features:
  • The Castelli Pro Issue W Sleeveless Base Layer is a highly wicking base layer for cooler conditions.
  • 100% polyester 3D mesh fabric
  • Reduced seaming at the shoulders for extra comfort
  • Double layer neckline
  • Flat waist hem sits better undershorts
  • Weight 38g (S)
  • Castelli comfort range under a racing jersey 15-20c


Occasionally, without notice, manufacturers change product design and/or specifications.