Our filaments come from MCPP (formerly DutchFilaments) best European manufacturer from a quality/price point of view (see 3Dnatives comparison). They are filmed (except PVA-M which is under vacuum), in a windowless cardboard box also filmed to ensure the good conservation of the product until the moment of use.
All the necessary information is noted on the boxes and on the reels, you will always have the right parameters at your fingertips!