A strong, adjustable elastic cord runs inside the edge of the cover, providing a snug fit over packs of various sizes. The elastic cord can also be used to stow the cover when not in usesimply roll the cover to a tight bundle and use the cord loop to secure it. Made from strong and waterproof PU-coated 70D polyamide ripstop fabric. Note.  Savotta manufactures this product in Finland and Estonia. Country of manufacture is labeled to the product. Size S: smaller day packs (up to approx. 20 litres), such as the Jääkäri S Size M: medium size day packs (approx. 30-40 litres), such as the Jääkäri M Size L: larger backpacks (approx. 60-70 litres), such as the Jääkäri L. Size XL: larger backpacks (approx. 80-100 litres), such as the Jääkäri XL