Running shoes "S4" (エスフォー) for runners aiming for a sub-4 finish. Manufacturer's suggested retail price: 22,000 yen (tax included) 【Brand Name】asics 【Model Name】S4 【Size】25.5cm 【Color】Blue 【Condition】 Small tear on the inside of the heel, which has been repaired. Wear on the outside of the sole. Other than that, there are no major scratches or stains, but there may be overlooked stains not mentioned or shown in the photos. Please understand that this is a used item before purchasing. 【Notes】 ・Will be shipped in simple packaging. No box. ・Colors may appear different depending on the lighting and your browser. Thank you for viewing. Please feel free to comment if you have any questions! 【From the manufacturer's press release】 The product released this time features a carbon plate that runs from the front to the back of the midsole (the intermediate cushioning material between the upper and the sole). The plate is V-shaped and is placed with a downward slope towards the toes, stabilizing the movement of the foot from landing to kicking off, and effectively propelling the body forward. The name "S4" comes from the four elements: "Speed," "Stability," "Safety," and "Sub4." The midsole has a two-layer structure, with the upper layer using the proprietary lightweight cushioning foam material "FF BLAST TURBO," which is also used in the high-end "METASPEED" series. It deforms and compresses upon landing and quickly returns to its original shape, providing a bouncy feel and allowing for longer strides. The upper is made of "Motion Wrap Upper," which is lightweight and highly breathable. It has excellent kickback properties, especially improving the fit in the midfoot. The outsole uses "ASICSGRIP," which provides excellent grip on various road conditions.