This number tells you how waterproof your garment is. If the fabric is 10k or 10 000 mm, this means you can place a square tube with inner dimensions of 30mm x 30mm over the garment’s outer fabric and you could fill it with water to a height of 10 000 mm before water would begin to seep through. The higher this number, the more waterproof the fabric.
100% Polyester
Avoid softner
Do not bleach
Do not dry clean
Do not iron
Do not soak
Do not tumble dry
Do not wring
Wash inside out 30°C
Wash separately