The short-sleeve version of Castelli's Prosecco Tech Base Layer line follows the layout of its longer-sleeved sibling and uses a simple blend of fabrics to elevate your riding comfort in cool conditions. The short-sleeve Tech warms the core on rides from 50-68 degrees F using a proprietary stretch knit on the main body for insulation, and a PrimaLoft fabric on the waist and back
  1. Proprietary stretch rib knit 100% polyester main body fabric with Prosecco hydrophilic treatment for maximum wicking
  2. PrimaLoft® panels at waist and back where bibtight covers upper body, to reduce uneven insulation
  3. Crew neck closure to fit under short-collared jerseys
  4. Weight:216 g
  5. Temperature:6°C - 16°C / 43°F - 61°F