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Heat prevention sheet for heatstroke prevention. New, unused, unopened.

★★★★★ 4.5 rating · 19 reviews · 187+ sold
$10.00 $13 30% OFF
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Product Details

Protect your head from the sun's heat!

Simply place the cute four-leaf clover sheet inside your hat or helmet to prevent radiant heat from the sun.

To use Netsu Bōshi, position the reflective side outward and the moisture-permeable waterproof sheet towards your head inside the helmet.
Radiant heat from the sun is absorbed by the helmet's material, but Netsu Bōshi, with its 98% reflectivity, blocks and releases secondary radiant heat, the primary cause of heat, back outside. For hats, Netsu Bōshi, with its 98% reflectivity, reflects radiant heat that has passed through the hat's material back into the atmosphere, significantly reducing the amount of heat transferred to your head. Furthermore, it cuts 98% of UV rays that pass through the hat and reach your head, making it safe for children with sensitive skin.

Category
Heat Protection & Cooling Goods
Condition
New/unused
Shipping
Included in price (by seller)
From
Unspecified

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (19)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User6045302
★★★★★
2026-11-08

Einfach zu bedienen, praktisch und langlebig.