The fabric of these bags lets the air through so that the foodstuff can breathe and it is perfectly impervious to light to avoid it germinating: storage time is therefore extended! Fasten with a cord. Zip opening at the bottom so you can take the items at the bottom of the bag first. Microfibre exterior in 100% polyester, interior in 100% synthetic material. Dimensions of bags: garlic 20 x 32 cm approx., onions and potatoes 25 x 39 cm approx.