Outer space book bag
The back back is good
U9
Brand-new promotes the back back good outer space book bag is a high tech breakthrough, it is one kind of function may adjust 节减 the negative knapsack, also is the fashion and the individuality perfect demonstration. It humanist, has advanced reduces the negative installment novel, the function, comfortable artistic, solid is durable. The back back good outer space book bag, the use "the outer space reduces negative" the principle, fully unifies the human body bio-engineering, mechanics and the spinal column unique feature, the thorough settlement ordinary book bag reduces the negative difficult problem. It conforms to the back natural curve, the balanced human body stress, reduces the shoulder department pressure, causes the shoulder department stress to disperse may the protection adjustment spinal column carry a heavy load, and reasonably enlarges the stress surface and the bearing surface, the effective cushion stress intensity, then prevents humpbacked, the body which because carries a heavy load for a long time causes to be crooked, the vertebra distorts or the distortion and so on. The collection "reduces negative" and "protects the spinal column" to a body, is a revolutionary knapsack innovation. The back back good outer space book bag function 1, reduces the negative minute to move carries a heavy load the scientific experiment to prove the shoulder department carries a heavy load may cause the shoulder pate 肌肉疲劳, the human body own can through bend the waist this movement to adjust the shoulder department stress, decomposes part of weights with the back, but also indirectly has oppressed the vertebra, causes the waist to be at the weary condition. But the outer space book bag may disperse the knapsack 60--70% above weight shift the lower part of the body, and may enable the weight to achieve the reasonable strut and the disperser finally can cause the muscle 疲劳度 to reduce above 35--40% to achieve the minute moves the effect which carries a heavy load. 2nd, the protection protects the body to rectify the posture vertebra adjustment frame, the force component cushion protects the back and so on to give the body and the package of in object good protection; The multiple liner has given the shoulder department soft comfortable protection; In the back ultra light outer space elastic liner effective cushion package has been hard has ill and the injury to the back, got up the omni-directional protective function to the body. 3rd, the comfortable balance extended the body outer space book bag in the shoulder department, the back, the waist three spots has used the human nature design, cultivated the feeling with the human body curve 极致 fitting to be comfortable. Also may prevent carries a heavy load for a long time is the result of humpbacked, collapses question and so on shoulder, slanting shoulder, spinal column distortion, thus enables the body to achieve the state of equilibrium. 4th, the durable wear-resisting