>  > >So far, the black "Solar Shower" bag has been a
>>  >disappointment,  we'll keep using it, but it does not warm
>>  >up much,
>>
>>  I haven't been much impressed with mine either --- and if it doesn't heat
>up in
>>  the Egyptian desert.....
>
>I've been very happy with mine... I think the brand is Sun Shower? got it at
>REI.... clear on one side black on the other... sure, it doesn't heat up
>much on a cloudy, cool day... but it's easy enough to boil a pan of hot
>water and add it to the cooler water in the shower bag... it works....
>
>Bill

I'm with Bill--my Sun Shower (also from REI) has been one of the best
things for long-term camping away from civilization throughout the
West, even up in the mountains.
I just fill it and heave it up on my rooftop luggage rack at the
beginning of the day (clear-side-up). By mid-afternoon, whether I'm
camping or driving, it's plenty hot and that's when I take a shower,
not after dark.
Since it's not insulated you can't really expect it to stay warm
after the air chills off outside.

waywest-87 GL Camper