There are three arches on the human sole, and physical balance is maintained by connecting the three
points of the roots
of the big toe, the roots of the little toe, and the heels. Arches also play the role of a suspension
that cushions the impact on the body when landing.
However, this function of suspension will decrease due to accumulated fatigue and stiffened muscles. Then, feet cannot absorb all the landing impact, which may place a heavy burden on the knees and lower back.
All C3fit socks are equipped with a taping effect that supports the arches of the sole.
Cross taping on the sole supports the arch of the foot and mitigates the decrease in functioning of the “longitudinal” arch. A special yarn is used in the crossing part, and the taping function has been enhanced as the yarns stick together and harden when arranging the shape by applying heat. In other words, by tightening only the taping part to enhance support and soften other parts, instead of hardening the entire fabric by using a knit structure, foot comfort has been secured. The longitudinal arch is very important in absorbing impact and maintaining propulsion force by the spring role.
*Patent acquired only in japan
These socks also firmly support the “transverse” arch by covering the tips of the metatarsal bones located at the root of the foot. Generally, deformation of the transverse arch causes spread foot (a condition where toes spread transversely), which is said to cause a feeling of foot and/or knee fatigue, as well as bunions. Taping is applied in a way that wraps up from top to bottom while also simultaneously supporting the transverse arch and longitudinal arch, the specification of which was uniquely developed by Goldwin, and has been patented.
By further raising the Achilles tendon part, discomfort while running caused by touching and being rubbed by the opening of a shoe is eased. Stitches were removed in the three-line part on the front side of the ankle, so that gathering of fabric when flexing the toes will be minimized.
Cushioning characteristic is improved by using pile fabric in the heel and toe. However, if it is too thick, it will make it harder to convey foot sensation; therefore, pile fabric in the toe is used only on the sole (the nail part is thin) and overall thickness is suppressed. Strong nylon yarn (reinforcing yarn) is used at the tip of the toe, so that it is not easily torn. These are our signature socks with finely changed yarns and materials. While these are small items, they are packed with our brand’s commitment to using environmentally friendly materials such as PET recycled polyester.
Paper Fiber Socks wick moisture not through harmful hydrophobic chemicals, but through the unique rough texture of the paper fiber. The result is a performance sock that protects your feet and aids long runs in hot weather unlike any sock you’ve worn before.
Paper Fiber is exceptionally abrasion resistance. Using a traditional Japanese technique, the yarns are twisted with stretchy nylon. Together, the paper fiber and nylon create a yarn that is five times stronger than the synthetic yarn commonly used in sport socks. Thus, Paper Fiber socks are ideal for high-intensity sports.
The taping at the sole supports the arch and keeps the height of vertical arch. It also wraps the metatarsal region of the foot and supports a lateral arch. Securing arches in place absorbs impacts and supports its cushioning function which maintains feet’s propelling force.
Thick fabric is used from toe to ankle for cushioning and enhanced fit. Wool is used for the body.
Wool's excellent moisture absorption and desorption properties keep the inside of the shoes
comfortable, cool in summer and warm in winter.
The lineup includes two types; mid weight and thick, that can be selected according to season and preferences.
Support around the ankle for enhanced fit and ankle stability.
Cross taping on the sole supports the arch of the foot and reduces the decline of the vertical arch.
Special threads yarns are used in the support area to strengthen the taping effect.
The taping also covers the metatarsal bone to support the lateral arch. By keeping the arches in place, it absorbs impact when landing and maintains the propulsive force of the foot by acting as a spring.