Those wee foot-y things for wearing invisibly inside your shoes

[treaclesoda]

I have size 4 feet. These things normally seem to be, like socks, made for size 4 to7 so I find they just fall off.

Does anyone know if I can get smaller ones anywhere? I don't really like the feel of shoes on bare feet.

I just buy sheepskin insoles. Much more comfy, I always find those sock things show whatever shoes I wear.
Try a kids' section of Next, John Lewis, or M+S they may do smaller ones.

These M&S ones are great, just ignore the moisturising nonsense.

those m&s ones look promising, with the sizing.

But I'm intrigued about the sheepskin insoles, do they help with the ickiness of sweating bare feet? And do they take up much room in your shoes?