Because the upper is constructed with stretch fabric

The frame that the Orbea Orca M30 is built around is extremely lightweight

The EL-X upper is made from a highly breathable polyester mesh material and reinforced in section with a PU Film for protection

Synthetic leather around the heel gives stability and durability

14% elastane dobby

Skechers Kids Shoes (4-8 Year)-Navy Blue/Red Type_Bottle Because the upper is constructedDescription Level up in sporty style and comfort wearing the SKECHERS Mega Craft Sporty mesh fabric and smooth synthetic upper in a slip on strap front athletic sporty training sneaker with pixel themed design, stitching and overlay accents. Air Cooled Memory Foam insole. CONSTRUCTION Soft woven mesh fabric upper Smooth synthetic metallic overlays at toe, heel and instep for added durability Slip on strap front athletic sporty sneaker design Stitching