The sole is synthetic rubber, the thong is natural rubber, and the solidity is 50%. Sponge rubber that's light, flexible, sturdy, and has outstanding cushioning qualities.
Compared to flat (same thickness throughout) sandals, tapered (low in the front, high in the back) sandals shine in walking ease. Depending on the size, the thong length along with the width are finely adjusted, slipping on our beach sandal is of the best. In addition, the thong's location is also something to pay attention to.
Manufacturing methods have not changed since the beginning. The rubber sheet is put in the mold and heated for 12 to 13 minutes. Due to the heat, the rubber sheet expands 1.5 times after this process. The stiffness and thickness need to be consistent, and there cannot be any holes which is created if there are air pockets, something that may lead to the rubber not being able to be used for production. This requires a high level technique and experience from the craftsman.
Sole 19 colors x Thong 12 colors = 228 color variations.
12 sizes ranging from 15cm to 28 cm Click here for Color Variations and Sizes
What's most popular nowadays is the "flat type" which has the same thickness from toe to heel. The "flat type" is massed produced due to its features that allows for maximum utilization of the material, and designs can be easily printed on the sole as well. However, Tsukumo adopts the "taper type" where the toe is low and heel is high. We want to provide a hand crafted product that prioritizes comfortability.
In addition, we have passion for thong as well.
There are some thongs having same length at both sides thereof so as to save molds and materials.
However, the distance from big toe to inside and from index finger to outside must be different, and also, Japanese people usually have broad foot which is high in their instep. Thus, we are offering thongs of which length is differed on right and left sides.
The sole of beach sandals has a non-slip pattern, but this makes it difficult for beautiful printing to be done. There are some flat type sandals that have prints without the non-slip patterns, but this makes it hard for one to walk. Tsukumo goes after both the non-slip pattern and the hand crafted printing, which we believe is the ultimate craftsmanship. Small detailed designs can be engraved using laser technology, in which both comfortability and beauty are achieved.
Synthetic rubber material which can give off great color is used. We use soft natural rubber for the thong to accommodate for the delicate skin between the toes, which minimizes stress on the foot.
Previously, there were times when thongs for domestic market were thick and thongs for the international market were thin. Japanese people are accustomed to footwear with thongs and enjoy a tight, thick thong. Some may say non-Japanese are not so used to wearing footwear with thongs, and are not used to having a thong between their toes, in which case the thin thongs were manufactured.
There are various names for the thong design. "Ropponsen," "Malt," "Nagaregawa," "Jumbo," etc. Those that you can imagine, and some that you cannot. Some of which are literal to the design, and some have no association at all.
Is it better to choose a bigger or smaller size, may be a question that many ponder about. Like the "setta" (traditional Japanese sandal), some may say it is more fashionable for the heel to stick out, but some prefer to wear something that's bigger in size. It probably is up to the person's preference more than what's right.
There are many names for the sole design as well. "Clover," "Koshi," "Konami," "Amime," "Balcan," "Takegara," "Tsubo," "Mukade," "Shogyaku pyramid," "Dot," etc. are some of the interesting names. What would be the design of your sandal?