Core Series – Essential Performance

Built for the grind. The Core Series is our foundational line of minimalist rash guards designed for durability, comfort, and daily wear. Featuring a clean aesthetic with the signature REEN logo, this collection delivers reliable performance for beginners and everyday practitioners alike.

  • Subtle REEN branding with no graphic prints

  • Durable, comfort-focused materials built for daily training

  • Ideal for new athletes or those seeking dependable essentials

  • Available in black or white

  • Entry-level price without compromising on quality