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A seamless base layer that is warm for its weight, for cool conditions.
- Polyester and polypropylene yarns
- Short sleeves
- Seamless construction
- Lighter knit at the sides and back
- Wide neck that sits under a jersey collar
- Castelli fit: Regular
- Castelli ratings out of 5: wind 1, water 1, insulation 4, breathability 4
- Colors: White, Black
- Sizes: XXL, S/M, L/XL
Not in stock at Castelli until Jan 9, 2027: Black in XXL and L/XL. Orders for these sizes ship once stock arrives.

Castelli Core Seamless Short Sleeve Base Layer
Sale price$85.00





