OK, so I was hesitant to order this product because some folks had reported swapped polarity on the parts as well as the challenge of 12 volt plugs. It lacks depth, but it gets the job done. But for the price, I feel crocks sandals should come in half sizes. Je porte en général du 9. Non le consiglio a chi ha la pianta larga ma le consiglio a chi ha il piede magro e lungo come il mio . They?re comfortable tho, just tried them on ???? We walked quite a bit and she didnt complain. It says it last 10 hrs and it did at first then dropped to about 7 to 8 hrs. My knees would hit the sides of the bag, and it took up most of the top tube, so it was kind of in the way when I stopped. For light loads, and does not ?whistle ? going down the road from the wind flow.