Panasonic RPHC200Y Noise Canceling Headphones (Yellow) for $18.72. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. It features a lightweight design, a soft headpad and spacial earcups, and outside noise reduction by 81% (14dB) at 200Hz. Most places have it for about $28.