Sea Grip Chalk

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Performance you can feel. Made responsibly. Sourced from mineral-rich seawater and concentrated through solar evaporation, our chunky chalk is non-mined and contains just one ingre dient — high-quality magnesium carbonate. Tested and proven in Squamish, BC. Every 275g bag sold helps remove 1 lb of at-risk plastic waste from our oceans through our partnership with Oceanworks™. Show more