I have no doubt that it could hold two normal weight people or one very heavy person without a problem. These dont fit all Thule bike trays. All that said, it’s comfortable and does a great job and the battery lasts longer than you think. Oh the Unit Weighs Around 28 Lbs. Did not want bluetooth as I am not that tech savvy; 67 years old and only use these with my Amazon Fire tablets and Zune and Sony mp3 players at home. Registering the product was simple and easy and fast. I just got these, sending them back. For £35 youre really going to get either comfort or quality with most headphones. Two side pockets, deep enough to contain a can of balls, is another improvement over my current bag. I almost fell at my job slipping all around .