New Arrival: KALCT HEATBLOCK Aluminum Silver
On February 3, 2026, Amvel's "HEATBLOCK" series will introduce a long umbrella model that further enhances heat-shielding performance.
The new "KALCT HEATBLOCK Aluminum Silver" features a coating with aluminum powder on the outer surface. This new model achieves both high heat-shielding performance, backed by numerical data, and a light weight that makes it easy for everyday use.
A new highly heat-shielding alternative to "white"
Parasols that are white are generally considered to "reflect sunlight and resist heat," but there were many comments such as "they look like they'll get dirty easily" and "they feel a little strange for men to carry."
"Aluminum Silver" is Amvel's answer to these concerns.
While being a stylish silver color that doesn't show dirt easily, its special structure, described below, achieves heat-shielding performance comparable to white parasols. It can be used casually by both men and women, from business settings to daily life.
Unique structure with "aluminum powder" that reflects heat on the surface
The most distinctive feature of this product is that "the PU (polyurethane) coating, which is normally applied to the inner surface, is placed on the outer surface."
This coating material uniformly contains fine aluminum powder.
Sunlight is directly reflected on the outermost surface of the umbrella before it can penetrate the fabric fibers. By suppressing the temperature rise of the fabric itself, it physically blocks the heat transmitted underneath the umbrella.
As a result, in heat-shielding tests, it achieved a heat-shielding efficiency of 92.4%, a very high value even among Amvel's product lineup. This is truly an umbrella designed to "efficiently reflect light and heat."
The reliability of a long umbrella and a lightweight design of only 200g
Despite being a sturdy long umbrella with 8 ribs, it is designed to feel light the moment you hold it.
-
Heat shielding efficiency 92.4% / Near-infrared cut rate 99.9%
Efficiently blocks light that causes heat. Creates a cool and comfortable space even under harsh sunlight.
-
Weight: Approximately 200g
Despite its solid size with a 58cm main rib and 8 ribs, it weighs only 200g. Designed to prevent arm fatigue during long outings or sports viewing.
-
Wind resistance 15m/s clear
While pursuing lightness, it maintains a robust structure that can withstand everyday winds.
-
100% light blocking / 100% UV cut rate
Maintains the common specifications of the HEATBLOCK series, blocking both light and UV rays.
Product Details (Specifications)
| Item | Content |
| Product Name | KALCT HEATBLOCK Aluminum Silver |
| Light Blocking Rate / UV Cut Rate | 100% / 100% (UPF50+) |
| Heat Shielding Efficiency | 92.4% |
| Visible Light / Near-Infrared Cut Rate | 100% / 99.9% |
| Main Rib Size / Number | 58cm / 8 Ribs |
| Weight | Approx. 200g |
| Overall Length / Diameter when in use | 67cm / Approx. 102cm |
| Waterproof Performance | Water resistance 14,940mm |
| Price | 8,800 yen (tax included) |
On sale from February 3rd
For those seeking high heat-shielding performance "other than white".
Experience "KALCT HEATBLOCK Aluminum Silver," a new form of heat shielding that utilizes the reflectivity of aluminum.
▼Product page here
KALCT HEATBLOCK Aluminum Silver Product Details
▼Click here for detailed structure and development background