...curious so looked them up, there is a cheaper (£83) HD25 'light' version using a single band head strap - might go for them if they really are light but the same driverHaving tried a host of IEMs and various enormo closed back phones, I’ve come back to Sennheiser HD 25s for travel and other scenarios where open back phones are not an option. Available for a little over £100.
Or these Sennheiser HD 450SE look good value for £75 new if you are on Amazon Prime:
Haven't heard these, but include a wired cable as well as BT it says...