Normally, protein is not removed when the kidneys filter waste from the blood. However, when the kidneys are damaged, protein leaks through the damaged filters and is removed from the body in the urine, along with the waste products.
1. rucksack-a bag carried by a strap on your back or shoulder. back pack, backpack, haversack, knapsack, packsack. bag-a flexible container with a single opening; he stuffed his laundry into a large bag. kit bag, kitbag-a knapsack (usually for a soldier).ucksack. n. 1. a large bag, usually having two straps and a supporting frame, carried on the back and often used by climbers, campers, etc. US and Canadian name: backpack. [C19: from German, literally: back sack].
In our How to Choose a Rucksack guide we will take you through the various sizes, common features and considerations you will need to make.arger rucksacks might also include hip belt and lid pockets for easy access to important or frequently used items. Reflective piping. If you plan to wear your pack in the dark, on a night run or hike for example, reflective piping will help you be seen.