assistant: Black toenails usually signal either a shoe that's too tight in the forefoot, or one where your foot is sliding forward in the heel — both are fit issues, not cushioning issues. Since you have wide feet, a roomy toe box is non-negotiable. Looking at your options, **Nike Vomero Premium** is your best bet here. It's explicitly wide in the forefoot, has a 54/44mm stack (the most cushion in this group), and reviewers note it's genuinely spacious — not just "wide-friendly" but actually roomy. The ZoomX PEBA midsole is plush and forgiving on impact, which helps with recovery days. At $220, it's above the daily-trainer price point, but it straddles daily trainer and easy recovery, so you can use it for both easy runs and long runs without guilt. If you want a more traditional daily trainer feel at a lower price, **Saucony Guide v18** is solid — it's wide in the forefoot, true to size, and at $140 it's a real value. The PWRRUN midsole is responsive enough for daily work but still cushioned. Mild stability helps if you have any slight overpronation tendency. **Brooks Glycerin GTS v22** is the third option, but here's the caveat: Doctors of Running notes it starts snug and breaks in over 15–20 miles, and they recommend the wide version for wider feet. If you go this route, *buy the wide version explicitly* — don't assume the standard width will open up enough for you given your toe-box sensitivity. Once broken in, it's a premium stability trainer with excellent lockdown. One quick question: are you currently getting black toenails in a shoe that's overall too small, or in a shoe where your foot slides forward? That'll help me confirm whether the Vomero's extra room is the real fix, or if we should prioritize a snugger heel cup instead.