زجاجة سريعة الفتح بلاستيك (تريتان) - 0.8 لتر لون قرمزي

A number of other reviews have mentioned the quality of the handle on the top of the bottle; in most cases, this has been due to people hanging the bottle from bags and subjecting the handle to quite a lot of strain - from reading the replies from Decathlon customer service, I am led to believe that the handle is not meant to be treated in this way, which I accept, even if it is then a bit strange to put the handle on in the first place (if customer service could let me know, I'd be very grateful). In any case, I have owned a number of these bottles and, without subjecting the handles to too much strain or hanging, the handles have almost always snapped off after a few months of owning the bottle, for me this is a little concerning but not the 'be all and end all'.
Additionally, the rubber cap tends to blacken with extended use (this seems to be a little different from the mold that can appear if the bottle is not washed frequently). The 'black' does seem to rub off onto a tissue when rubbed, but try as I might I can't get it all off! A lot of it is embedded and leads me to believe that the rubber naturally goes this way. I'm just confused as I've only been using the bottle for around 6-7 months now and I've read that the bottles have a 2 year warranty on them (also all the bottles of this type that I have owned tend to go this way) - should I be worried? Is this to be expected?

It would be nice to get a reply to this review to explain why these things are happening as I'm sure there's a logical explanation!

Overall I am impressed with the bottle and have certainly been able to get a lot of use out of them. Sure you need to make sure the rubber o-ring is in properly every now and again, but I'd imagine that's the same for most water bottles.