When selecting oven mitts, the material determines the maximum temperature threshold and grip. Silicone is highly recommended for its ability to withstand up to 500°F (260°C) and its waterproof nature, which protects against steam burns. For heavy-duty industrial use, look for Aramid fibers (like Nomex or Kevlar), which offer superior flame resistance. For standard kitchen use, quilted cotton provides comfort and flexibility but must be thick enough (at least 10oz canvas) to prevent heat transfer.