The New Balance SL-2 fit features a deeper, wider toe box and forefoot, combined with a narrower, snugger heel. Built on the "SL-2" last (shoe mold), this design is ideal for wide feet, high insteps, orthotic wearers, and those needing extra room for toe splay.How the SL-2 Last FitsToe Box: Deeper and wider than standard (SL-1) shoes.Heel: Slightly narrower to prevent heel slippage, locking the foot securely in place.Instep: Higher, making it comfortable for feet with higher arches or thicker volumes.Arch: Generally well-suited for neutral and lower arches, providing ample room for custom orthotics. the classic SL-2 fit has historically been a staple in Walking and Motion Control categories. NWT