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Yes, we are honored to offer you samples.

It can be any material as customers' requirement, But we usually use nylon, polyester , canvas etc.

500 pieces,Special Material is 1000 pcs

Canvas: a thick, thick fabric of cotton or linen. Originally named for sails. Generally use plain weave, a small amount of twill weave, warp and weft yarn with multiple strands. Canvas is usually divided into two broad categories: coarse canvas and fine canvas.Canvas bag material and cotton cloth bag material is the same cotton, take it from nature, very environmental protection;Canvas bag, the biggest cost is the fabric, non-woven bag with some green ink, generally do not cut corners in order to save that money (unless it is the manufacturer to Mongolia), said to be green here;Durable, pay attention to the use of cloth canvas bag for two years without any damage, but in some places open line (sometimes carry heavy things out, manufacturers do not good), so the workmanship is exquisite manufacturers, this is from the publicity time oh;Canvas bag more fabrics, more lines, most of them are very fine, smooth printing, imaging effect is very good.Cleaning is also easier, after washing, there will be a little deformation, because cotton will shrink. This is much stronger than non-woven fabrics.

 Outdoor backpack buying common senseGenerally choose the built-in backpack, first look at the structural design of backpacks, must have the following basic items:The bottom of the backpack is double deck, so that the durability of the backpack can be increased. The extension bag at the top of the backpack must be extended upwards, while the extension pocket must be sealed. The compression belt outside the backpack must be able to shrink the backpack volume and prevent shaking. Backpacks, side bags should be easy to assemble and disassemble. The backpack must have traction ring and ice axe loop provide carry crampons, outdoor shoes... Other items.After checking the appearance, then carry your backpack back to the mirror and pay attention to the following:The skeleton of the backpack must be 2~4 inches above the shoulders, and the upper bag should not exceed 5 or 6 inches of the shoulder, otherwise a backpack shall be re elected. When carrying, the center point of the waistband should be placed in the center of the sciatic bone, and the ends of the waist gasket should not be too close to each other, and the part without shims can not be rubbed against the stomach, and the tight belt should not be chosen. Adjust the shoulder strap fixation point. The curve of the shoulder strap should be attached to the back of the victim's shoulder. The shoulder strap should be about 2~3 inches below the shoulder top, and both hands should grip the end of the shoulder strap. The fist must be below the armpit. The head can not hit the top of the backpack, and can not obstruct the helmet. The chest straps must be able to help the bear survive the difficult terrainHow to properly pack backpacks to reduce the carrying capacityTo use an umbrella tent attached to a backpack, top fuel oil and water shall be separately placed to avoid contamination of food and clothing, heavy backpack items at the center and lower side band, such as clothing (must use a plastic bag and sealed by different color ribbon so easily recognizable), personal apparatus，headlights, map, compass, camera, attached to a light below items, such as sleeping bags (must be sealed with waterproof bag), camp column can be placed in the bag or backpack backpack in the rear cushion, prepare a long belt tied to some items, such as three tripod, camp column or on the side bag.For male and female backpack is not consistent, because the boys and girls of the upper torso long upper torso is short but long legs, carefully choose the right backpack, loading weight set high when the boys, because boys focus position close to the chest, the girls lower heart location close to the abdomen, weight items to close back, let the weight above the waist. Climbing (climbing backpack) back packing during filling position is close to center of the pelvis, the center of rotation of the body, so as to prevent weight shift to the shoulders, hiking, backpacks filled with high gravity can be close to back.Fuel oil and food must be placed separately, pay attention to the cooker or boiler group loading, do not make the back uncomfortable, pot set in rainy days into the tent, wipe clean. Loading backpacks is not to throw everything into backpacks, but to back comfort and walk happily.

Definition of backpackMarch or go out in the back of the clothing package. Material diversification, leather, plastic, polyester, canvas, nylon, cotton bags and other fashionable texture. At the same time, in more and more flaunt the personality of the period, simplicity, retro, cartoon and other styles, from different sides to cater to fashion people, publicity personality needs. Luggage style from the traditional business bag, school bag, purse, extended to small sachet etc..Material technologyBecause the backpack in a special environment, the backpack materials and processes put forward higher requirements. All the position of the knapsack force is sewn back to the needle and sewn in three times, so that the force position is firm and durable. The buckle and other components of the backpack can be frozen, smashed and deformed at 120 degrees centigrade without damage. Backpacks are mainly 420D, Oxford nylon, 1000D nylon, 600D or 1000Dpolyester (polyester), or 1000D, CORDURA and other materials. 1000D material has high density and is very wearable and is suitable for use in the field. CORDURA is a famous high quality wearable nylon roving fabric developed by DuPont Co. The wear resistance of this material is much higher than that of ordinary nylon or polyester, and it is light in weight. More than 90% of the world's most famous brand backpacks are made of this famous nylon material. These materials can withstand 0.5m~2m water pressure, so that the object in the package to keep dry. Some materials also have anti tear function, once punctured, the gap will not tear open to enlarge.Development statusAs everyone's living and consumption standards continue to rise, a variety of backpacks become indispensable accessories around people. We all request that the bags and bags products be strengthened not only in practicality, but also in decoration.China bags is a big country of production, China has been formed in Guangdong Huadu, Fujian Quanzhou, Zhejiang Pinghu and Hebei Baigou four PVC bag manufacturing base.There is a huge demand space in the international luggage market, which has directly promoted the export growth of Chinese luggage and bags, and made the export of bags steady growth and good momentum. In 2007, the export value of China's luggage was 10 billion 810 million US dollars, up 24.21% over the same period, and the number of exports was 7 billion 779 million, an increase of 21.56%.Category useAccording to the different backpack capacity, the backpack can generally be divided into large and medium-sized categoriesLarge Backpack Capacity of more than 50 liters, suitable for medium and long distance travel and more professional adventure. For example, when you want to go to places like TibetYou should undoubtedly choose a large backpack with a capacity of more than 50 litres when traveling or exploring mountains. In some short trips if you need a large backpack also need camping in the wild, because only it can hold your camping tents, sleeping bags and pads. Large backpacks, depending on the use of different, can be divided into climbing bags and long-distance travel backpack.The mountaineering bag usually has a long and thin bag, so the bag can be divided into two layers through the narrow topography, and the middle part is separated by a zipper interlayer, so that when the goods are taken away, it is very convenient. The sides and the top of the backpack can be provided with tents and mats outside, and the volume of the backpack is virtually increased. There axe backpack sets, can be used for bundling axes, with the poles. The most noteworthy is the back structure of these bags, the bag has light Aluminum Alloy support package body frame, the back of the shape is designed according to the principle of human body engineering, the strap is wide and thick, shape according with the human physiological curve of "S" type design, and prevent the straps to both sides of the chest belt sideslip make the wearer feel very comfortable. And these backpacks all have a strong, generous and comfortable belt, and the height of the straps can be adjusted. The user can conveniently adjust the strap to the height suitable for himself according to the figure of the user. Generally, the bottom of the backpack is positioned above the hips, so that more than half of the weight of the backpack is transferred to the waist, thereby greatly reducing the shoulder burden and reducing shoulder damage due to long-term weight-bearing.Long distance travel backpack bag structure is similar to mountaineering bags, but the bag body more generous, and is equipped with many side bags, so that the object classification system is placed, long-distance travel backpack front usually can be opened to take items is very convenient.The volume of medium backpack in general 30~50 litres, use these packs more widely, 2~4 days of field trips, travel between the city and some long-distance travel non camping self-help, medium-sized backpack is appropriate. Carry on clothes and some daily necessities can hold. The style and variety of medium-sized backpacks are more varied. Some backpacks add side pockets, which are more conducive to repacking. The back structures of these backpacks are about the same as those of large backpacks.The capacity of a small backpack is below 30 litres. These backpacks are mostly used in the city. Of course, they are also suitable for 1~2 day outings.

Canvas: a thick, thick fabric of cotton or linen. Originally named for sails. Generally use plain weave, a small amount of twill weave, warp and weft yarn with multiple strands. Canvas is usually divided into two broad categories: coarse canvas and fine canvas.Canvas bag material and cotton cloth bag material is the same cotton, take it from nature, very environmental protection;Canvas bag, the biggest cost is the fabric, non-woven bag with some green ink, generally do not cut corners in order to save that money (unless it is the manufacturer to Mongolia), said to be green here;Durable, pay attention to the use of cloth canvas bag for two years without any damage, but in some places open line (sometimes carry heavy things out, manufacturers do not good), so the workmanship is exquisite manufacturers, this is from the publicity time oh;Canvas bag more fabrics, more lines, most of them are very fine, smooth printing, imaging effect is very good.Cleaning is also easier, after washing, there will be a little deformation, because cotton will shrink. This is much stronger than non-woven fabrics.

A modern pack can seem to defy the laws of gravity, making 60 pounds carry like 40, and making 30 pounds feel like a heavy shirt (almost). If you're carrying an older pack, you may find yourself stripping it off regularly to relieve shoulder spasms and tingling fingers. Conversely, a good, correctly fitted modern pack will rarely leave your back sore (same weight, more comfort). And the heavier your payload, the more critical the pack quality becomes.Virtually all packs are made of nylon, foam and aluminum and fall into three basic categories: external-frame,  internal-frame, and frameless rucksacks. External-frame and internal-frame packs are the most appropriate choices for multi-day trips, while frame-less packs are best for light, fast ovenights or big day loads. Choose your pack based on the type of trips you will be taking.Backpack Types:External-Frame Pack:The external is the venerable purist's "back- packing" model, made with an H- shaped exposed frame suspended by thickly padded shoulder straps, a stretched back band, and a load-bearing hip belt. Straps or wired clevis pins attach the pack bag to the frame. An external carries best with the weight high over the shoulders, supported largely by the waist belt. It offers good ventilation against your back, a relatively straight-up stance, and heavy load-hauling capacity. However, the same high center of gravity also makes the external shaky in the balance department, often causing the wearer to sway during active sports like skiing, bushwhacking, and boulder hopping. A typical external pack bag bristles with side pockets and compartments, allowing for easy gear organization during long trips. Externals come in simple top-loading and easy-access panel-loading versions or combinations. Look for strong bag-frame attachments and a comfortable initial fit with good weight transfer to the hips. After that, check for adequate shoulder-strap padding and thoughtful pocket configurations. Strap on the pack, snug it tight, then look up. Your head will probably hit the frame, so find one with reasonable clearance. Although externals remain popular, they've lost ground to the recent wave of Internal-frame models. An external is typically half the cost of a comparable Internal.Internal-Frame Pack: An internal incorporates the load-transfer elements into the pack bag itself, using flexible stays of aluminum or graphite to transmit weight onto a padded, stiffened hip belt. A flexible plastic frame-sheet adds support and guards the spine from protruding cargo, yet has enough "give" to match your moves. An internal hugs tighter to the body than an external frame and carries the load somewhat lower so it's more stable for climbing or rock hopping. The streamlined shape offers better arm clearance for awkward maneuvers, and slips through tight spots where you'd be dragging a bulky external pack behind you. Many people buy internals because of their "mountain jock" image, but these packs do have their drawbacks. You lean forward more under an internal than with most externals. Proper loading is critical because the cargo itself helps stabilize the whole structure. Side pockets usually have to be purchased separately. And most significant, a better internal pack can cost $350 and up, though even the fanciest external rarely tops the $200 mark. Look for a good harness fit, where the hip belt centers over your hip bones  and the upper ends of the shoulder straps attach to the frame 2 or 3 inches below shoulder level. The tops of the frame stays should protrude at least a couple of inches above shoulder height, but no more than 5 or 6 inches.Match the pack-bag size to your intended uses. Simple, flat-bottomed sacks stand up better for loading than those with tapered sleeping-bag compartments. Since all your stuff should fit inside an Internal, take key items such as tents and sleeping bags along when you're shopping.Frame less Rucksack: A rucksack in the midsized range (2,500- to 3,500-cubic-inch capacity) actually sports some sort of frame. A simpler incarnation is just a well-tailored bag with a foam-padded back panel and shoulder straps atop a webbing waistbelt. The smaller end of the rucksack range is best suited to light-load activities such as hut-to-hut hiking, grocery shopping, backcountry skiing, rock climbing, and day-tripping, anything where the freedom of motion is ample reward for the smallish capacity.Suspension varies widely in this category. The better sacks incorporate flexible plastic framesheets, shoulder-strap stabilizers, and stiffened padded waistbelts. These models can usually handle 30 to 40 pounds; heavier loads depend on your grit factor. A frameless rucksack requires careful packing to carry well, since the stuffed pack bag s your load stability.

Slope toe, foot down heavy.When it comes to the upper ramps, the most important thing is to walk outside, or toes out. We might be on the steep slope foot essence (see definition above slope) it is easy to learn, if all the foot on the slope toe, because it is higher than the position of the heel, ankle so radical bent and not even the coordination. On the contrary, if you cant open toe, the foot to step on the toes and ankles turn sideways, this is almost the same height, so the ankle will become easy and simple swing.Don't jump on high ground.A step slightly higher than the knee. On the hiking course, you can sometimes see a knee high or slightly higher than the knee, or a large height, drop, slope, etc on the slope. When descending such a steep terrain, it is strictly prohibited to bounce suddenly and steadily!!! Jumping down, not only falls, sprains the ankle, but also has the risk of contusion or fracture. Step down right is to firmly grasp the roots on the edge of the plant, put your feet down smoothly to stabilize the body center of gravity Dianzhe, or sit on the ground gradually slid down the ground.Several mountain climbing bags recommended today are more suitable for mass consumption, while some amateur mountaineering enthusiasts buy them

1.12H Inquiry-Reply; 2.CE.ROHS.SGS,Intertek, Approved;3.With more than 9 years experience without complaints.4.Experienced and strictly inspect QC and IQC team

300,000 Pieces per Month, both FCL and LCL order is acceptable to us.

About the delivery time: About 30-45 Days after paymentRemark: Usually the delivery time , you must confirm with us before you place order.

Inquiry for the Bags--offer with bags proposal and layout--purchasing order--payment--production--delivery

Warmly Welcomed, We offer OEM service to our clients.