Bought two Elecom USB-C to USB-C Power Delivery Cable from Yodobashi Multimedia Sapporo Store .
After buying it, I realized both cables are from different series although they look the same.
I have no idea what are the differences. According to Benson Leung  the USB3-CC5P support USB Power Delivery up to 100W (5A) while USB3-CCP supports USB Power Delivery of up to 60W (3A).
Based on the two official links above, it seems that the USB3-CC5P series is the higher end as it is slightly more expensive.
Even the person pasting the price tag is confused as well. Despite the price tag states JP¥2,010 on the 1m cable, I only paid JP¥1,810 (before tax JP¥1,676) for it.
The 0.5m cable from USB3-CCP series retails for JP¥1,570 (before tax JP¥1,454) while the 1m from USB3-CC5P series retails for JP¥1,810 (before tax JP¥1,676).
If you spend more than JP¥5,000, it is tax-free. On top of that, if you pay by VISA credit card, you get an additional 5% discount.
After everything, I paid JP¥1,382 (S$17) for the 0.5m cableand JP¥1,593 (S$20) for the 1m cable.
This cable supports USB 3.1 Gen 2 and that will give you data transfer speed of up to 10Gbps, two times faster than USB 3.1 Gen 1 of the Anker PowerLine USB-C to USB-C Cable.