EMF Blocking Baseball Cap

The Halsa EMF Baseball Cap in Washed Cotton is the everyday cap you've been looking for — broken-in feel, no-fuss style, and EMF protection built right into the crown. The washed cotton treatment gives it that comfortable, slightly vintage look straight out of the box, so you're not waiting weeks for it to feel like yours. Silver fiber woven into the crown and sides blocks 99.9% of EMF radiation from the WiFi networks, 5G signals, and Bluetooth devices that follow you through your day. It's the anti-radiation hat that just looks like a great hat.

• Washed cotton construction delivers a soft, broken-in feel from first wear
• Silver fiber in the crown and sides blocks 99.9% of EMF from WiFi, 5G, and Bluetooth
• Adjustable back strap for a custom fit on any head size
• Classic structured bill provides sun coverage alongside EMF protection
• Understated design — no logos or branding that call attention to themselves
• Breathable fabric construction suited for warm-weather wear

Materials: Washed cotton exterior with silver fiber lining in the crown panel. Adjustable strap fits most adult head sizes. Silver fiber content maintains shielding effectiveness through regular washing.

Care: Hand wash cold with mild detergent. Reshape bill while damp. Lay flat to dry. Do not wring, bleach, or machine dry.

We will fulfill all orders placed by 2pm CST the same day, Monday through Friday. Often times we will fulfill orders the same day during the weekend, as well, but there are no guarantees. We use fulfillment by Amazon. Typically, orders will be delivered within 3-5 business days, but some times sooner.