バックヤードファミリー BACKYARD FAMILY 体幹筋エクササイズインソール ツインボール 【交換・返品不可】 size:LL Size/LL Size ■The staff tried wearing and

■The staff tried wearing and washing it

-The contrast between the fluffy

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a mid-length version has been introduced

13号：パンツ裾幅40cm、股下46cm、股上32

バックヤードファミリー BACKYARD FAMILY 体幹筋エクササイズインソール ツインボール 【交換・返品不可】 size:LL Size/LL Size ■The staff tried wearing andBrand Name BACKYARD FAMILY Product Name Core Muscle Exercise Insole Twin Ball Product Description Developed by Mr. Kasugai, the head of the training studio TRUST! The high performance insole "Twin Ball" equipped with 7 functions that promote the activation of "core muscles" is now availableThe core muscles, which are difficult to activate consciously, can be activated simply by placing them in your shoes. 1. Shock Protection Zone (back). The honeycomb