Limited Edition
On August 1, 2025, researchers at Penn State University solved a centuries-old mystery dating back to Benjamin Franklin’s iconic kite experiment. Using advanced simulations and high-energy physics modeling, they uncovered the actual mechanism that initiates lightning in storm clouds.
Their findings show that intense electric fields within thunderclouds can accelerate free electrons to near-light speeds. These electrons then collide with atmospheric molecules, triggering a cascade of interactions—including the emission of X-rays—that ultimately give rise to a lightning bolt. This chain reaction also explains the elusive phenomenon of “dark lightning” (terrestrial gamma-ray flashes), observed by satellites but previously misunderstood.
About the Piece:
• 100% polyester canvas upper side
• Ethylene-vinyl acetate (EVA) rubber outsole
• Breathable lining, soft insole
• Faux leather toe cap
• Padded collar, lace-up front
• Soles and laces in matching colors
Important: This product is available in the following countries: United States, Canada, Australia, United Kingdom, New Zealand, Japan, Austria, Andorra, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Holy See (Vatican city), Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Liechtenstein, Luxemburg, Malta, Monaco, Netherlands, Norway, Poland, Portugal, San Marino, Slovakia, Slovenia, Switzerland, Spain, Sweden, and Turkey. If your shipping address is outside these countries, please choose a different product.
Disclaimer: The shoes will have a glue-like smell when opening the box. The smell will disappear a few days after the shoes are unpacked.
Size guide
| |
US WOMEN |
UK |
EUROPE |
JAPAN |
FOOT LENGTH (inches) |
OUTSOLE LENGTH (inches) |
| 5 |
5 |
2.5 |
35.5 |
22 |
8 ⅝ |
9 ¾ |
| 5.5 |
5.5 |
3 |
36 |
22.5 |
8 ⅞ |
9 ¾ |
| 6 |
6 |
3.5 |
36.5 |
23 |
9.00 |
10.00 |
| 6.5 |
6.5 |
4 |
37.5 |
23.5 |
9 ⅛ |
10 ¼ |
| 7 |
7 |
4.5 |
38 |
24 |
9 ¼ |
10 ¼ |
| 7.5 |
7.5 |
5 |
38.5 |
24.5 |
9 ½ |
10 ⅝ |
| 8 |
8 |
5.5 |
39 |
25 |
9 ⅝ |
10 ⅝ |
| 8.5 |
8.5 |
6 |
40 |
25.5 |
9 ¾ |
10 ¾ |
| 9 |
9 |
6.5 |
40.5 |
26 |
10.00 |
11 ⅛ |
| 9.5 |
9.5 |
7 |
41 |
26.5 |
10 ⅛ |
11 ⅛ |
| 10 |
10 |
7.5 |
42 |
27 |
10 ¼ |
11 ⅜ |
| 10.5 |
10.5 |
8 |
42.5 |
27.5 |
10 ½ |
11 ⅝ |
| 11 |
11 |
8.5 |
43 |
28 |
10 ⅝ |
11 ⅝ |
| 11.5 |
11.5 |
9 |
44 |
28.5 |
10 ¾ |
12.00 |
| 12 |
12 |
9.5 |
44.5 |
29 |
11.00 |
12 ⅛ |
| |
US WOMEN |
UK |
EUROPE |
JAPAN |
FOOT LENGTH (cm) |
OUTSOLE LENGTH (cm) |
| 5 |
5 |
2.5 |
35.5 |
22 |
22 |
24.8 |
| 5.5 |
5.5 |
3 |
36 |
22.5 |
22.6 |
24.8 |
| 6 |
6 |
3.5 |
36.5 |
23 |
22.9 |
25.4 |
| 6.5 |
6.5 |
4 |
37.5 |
23.5 |
23.2 |
26.2 |
| 7 |
7 |
4.5 |
38 |
24 |
23.5 |
26.2 |
| 7.5 |
7.5 |
5 |
38.5 |
24.5 |
24.1 |
27 |
| 8 |
8 |
5.5 |
39 |
25 |
24.5 |
27 |
| 8.5 |
8.5 |
6 |
40 |
25.5 |
24.8 |
27.3 |
| 9 |
9 |
6.5 |
40.5 |
26 |
25.4 |
28.3 |
| 9.5 |
9.5 |
7 |
41 |
26.5 |
25.7 |
28.3 |
| 10 |
10 |
7.5 |
42 |
27 |
26 |
29 |
| 10.5 |
10.5 |
8 |
42.5 |
27.5 |
26.7 |
29.5 |
| 11 |
11 |
8.5 |
43 |
28 |
27 |
29.5 |
| 11.5 |
11.5 |
9 |
44 |
28.5 |
27.3 |
30.5 |
| 12 |
12 |
9.5 |
44.5 |
29 |
28 |
30.8 |