Actually leak proof lunch boxes

[MojoMoon]

I have a couple of Sistema quaddies to take my lunch to work in and they leak a bit

I take salad and dressing in a little bottle but there is still some liquid in a salad from the chopped up veg and it always leaks out

I cycle or walk so it gets bounced around a bit

What actually is leak proof? I think it probably needs to have a silicon seal or something similar, right?

[Thismummyruns]

I use a clip top with silicone seal tub from Ikea for my overnight oats, haven't had any milk leaks yet. Might be worth a shot?

[Hannahthepink]

Lock'n'lock are the best in my experience (I work in a kitchenware shop).

[Isitme13]

Definitely lock and lock boxes.

I’ve sent dd1’s lunch in them for years, and never a single leak (and she’s not gentle with her lunchbox, it gets chucked around all over the place).

[DustyDoorframes]

Another vote for lock and lock, there are knockoffs around (eg the ikea ones), which don't leak but mostly break sooner.