My Simple Adjustable Red Flask Bottle Holder

A new item that I've never crocheted before. I did this one actually end of last year when my family was in KL. As my mum makes coffee (I love coffee!) in the morning, she packs some in my flask for me to bring to the office (I get headache if I don't have coffee in the morning, addicted =P). It's kinda hard to bring a 0.5L flask in my handbag so I've crocheted a flask bottle holder. So here it is:

I've added two button on the handle so that I can adjust the length, shoulder/hand held.

I still remember mum's crocheted blue water bottle holder which I used to bring to school everyday. Anyone else uses crocheted bottle holder before when you are young? =)