New, unopened item [Suzumi Masenka] Hat Cooler NEO Hat-specific cooling sheet, set of 2

Cooling sheet for hats that naturally cools at 28°C using PCM material.

Cool down the inside of your hat

For commuting to school/work, cycling helmets, club activities, and gardening work.

- Product Name: Bōshi Hiyashi NEO (Hat Cooler NEO)
- Features: Uses PCM material, naturally cools at 28°C
- Materials: TPU, PET resin
- How to Use: Attach inside your hat.

Thank you for looking.