---
product_id: 664452295
title: "HAVN EMF Blocking Hat for Men & Women - Adjustable Faraday Cap with WaveStopper Silver Shielding - Blocks 99% of WiFi 5G Cellphone Radiation - Breathable EMF Protection - Black One Size"
brand: "lambs"
price: "¥30823"
currency: JPY
in_stock: true
category: "Lambs"
url: https://www.desertcart.jp/products/664452295-havn-emf-blocking-hat-for-men-and-women-adjustable-faraday
store_origin: JP
region: Japan
---

# Adjustable fit for all heads Breathable 100% cotton shell Blocks 99% EMF radiation HAVN EMF Blocking Hat for Men & Women - Adjustable Faraday Cap with WaveStopper Silver Shielding - Blocks 99% of WiFi 5G Cellphone Radiation - Breathable EMF Protection - Black One Size

**Brand:** lambs
**Price:** ¥30823
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay ahead of the wave—block radiation, not style!

## Quick Answers

- **What is this?** HAVN EMF Blocking Hat for Men & Women - Adjustable Faraday Cap with WaveStopper Silver Shielding - Blocks 99% of WiFi 5G Cellphone Radiation - Breathable EMF Protection - Black One Size by lambs
- **How much does it cost?** ¥30823 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/664452295-havn-emf-blocking-hat-for-men-and-women-adjustable-faraday)

## Best For

- lambs enthusiasts

## Why This Product

- Trusted lambs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Comfort Fit:** Easily adjustable rear strap ensures a perfect fit for every head size—because protection should never compromise style or comfort.
- • **Stay Cool & Protected:** Lightweight, breathable cotton outer shell with a sun-shielding brim keeps you cool while blocking harmful rays and radiation.
- • **Shield Your Brainpower:** Patented WaveStopper silver-fiber blocks 99% of WiFi, 5G & Bluetooth signals to keep your focus sharp and your head safe.
- • **Year-Round EMF Defense:** Part of the HAVN EMF range—mix and match with beanies for winter or sleep caps for nighttime protection, keeping you shielded 24/7.
- • **Discreet Everyday Style:** Classic black baseball cap design with zero tech vibes—wear it confidently anywhere from office meetings to weekend adventures.

## Overview

The HAVN EMF Blocking Hat combines cutting-edge WaveStopper silver-fiber technology with a breathable, adjustable cotton design to block 99% of WiFi, 5G, and Bluetooth radiation. Its sleek black baseball cap silhouette offers discreet, everyday protection with a sun-shielding brim, making it the perfect accessory for health-conscious professionals who refuse to compromise on style or safety.

## Description

Buy HAVN EMF Blocking Hat for Men & Women - Adjustable Faraday Cap with WaveStopper Silver Shielding - Blocks 99% of WiFi 5G Cellphone Radiation - Breathable EMF Protection - Black One Size: Shop top fashion brands Baseball Caps at desertcart.com ✓ FREE DELIVERY and Returns possible on eligible purchases

## Features

- BLOCKS 99% OF EMF RADIATION: this EMF blocking hat is lined with patented WaveStopper silver-fiber shielding lab-tested to IEEE-299 and EN 62209-2 so wifi 5G cellphone and bluetooth signals are attenuated before they reach your head.
- ADJUSTABLE FARADAY CAP FOR EVERY HEAD: a rear strap dials the fit in for men and women and the 100% cotton outer shell stays breathable through summer while the brim adds shade on bright days.
- READS AS A NORMAL BASEBALL CAP: no visible shielding and no tech-looking panels - a plain black silhouette that carries an EMF protection cap into an office a flight or a school run without comment.
- ONE SIZE UNISEX FIT IN BLACK: the strap covers most adult sizes - hand wash cold and air dry to keep the silver lining performing exactly as it did on day one.
- PART OF THE HAVN EMF PROTECTION RANGE: add our lightweight EMF beanie for sleep or our knit beanie for winter and keep shielded headwear in rotation all year.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9J3J66M |
| ASIN  | B0D9J3J66M |
| Additional Features | Adjustable, Breathable, Sun Protection, Washable |
| Age Range Description | Adult |
| Apparel Closure Type | Snap |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #259,269 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,503 in Men's Baseball Caps |
| Brand Name | Lambs |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (36) |
| Date First Available  | July 25, 2024 |
| Department  | unisex-adult |
| Fabric Type | WaveStopper™ inner layer: 100% pure silver fibers. Outer layer: 100% cotton. |
| Fit Type | straight |
| Fit to Size Sentiment | Positive |
| Hat Form Type | Baseball Cap |
| Import Designation | Imported |
| Is Waterproof | false |
| Item Dimensions | 4.15 x 9.05 x 7.9 inches |
| Item Type Name | Cap |
| Material Type | Cotton Blend |
| Number of Items | 1 |
| Occasion Type | Bachelorette Party, Easter, Mother's Day |
| Pattern | Solid |
| Pattern Style | Solid |
| Product Care Instructions | Hand Wash Only |
| Product Dimensions  | 4.15 x 9.05 x 7.9 inches; 3.84 ounces |
| Recommended Uses For Product | Daily use, Sun protection |
| Seasons | All |
| Style Name | Cap |
| Sun Protection | 50 sun_protection_factor |
| Theme | Tech |
| UPC | 860012375332 |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |

## Images

![HAVN EMF Blocking Hat for Men & Women - Adjustable Faraday Cap with WaveStopper Silver Shielding - Blocks 99% of WiFi 5G Cellphone Radiation - Breathable EMF Protection - Black One Size - Image 1](https://m.media-amazon.com/images/I/71ZzXKOsz1L.jpg)

## Frequently Bought Together

- Lambs HAVN EMF-Proof Cap - Wavestopper™ Silver Tech - Blocks 99% of EMF from WiFi, 5G, Phones, Bluetooth - Faraday Hat, Soft, Breathable, Adjustable - Black, Unisex Design for All-Day Comfort.
- Golden Kocoon® - E-M-F Organic Cotton & Bamboo Viscose Slouch Beanie with EcoShield™ Tech Bamboo Lyocell Faraday Fabric Silver Liner - Adult Size Hat in Black - 5 g, BT, Smart Meter & WiFi Cocoon Cap

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**Shop now:** [https://www.desertcart.jp/products/664452295-havn-emf-blocking-hat-for-men-and-women-adjustable-faraday](https://www.desertcart.jp/products/664452295-havn-emf-blocking-hat-for-men-and-women-adjustable-faraday)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-13*