Feb 3rd, 2012, 16:50
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只看该作者 #121 | |
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Sr. Penguin
   
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"Althogh some consider forcefulness and persistance to be two traits desirable to the same degree, I think that making a violent effort is much less useful than maitaining a steady one."
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Feb 3rd, 2012, 21:39
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只看该作者 #123 |
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Sr. Penguin
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clothes layering
Base Layer The inner-most layer is critical because it's in direct contact with your skin. Base layers (also known as underwear) should transport moisture away from the skin and disperse it to the air or outer layers where it can evaporate. Because water is a good heat conductor, damp garments draw precious heat away from your body. Even in conditions above freezing, this rapid heat loss can cause a dangerous drop in your body's core temperature. The best base layer materials are synthetics (polypropylene and polyester). These are light and strong, absorb very little water, and are quick to dry. Silk is lovely and cool against the skin when it's hot, but is not an excellent choice for wintery conditions. Seamless or flat-seam garments lie flat and won't press into your skin under a harness or pack. Base layers should fit snugly without being constricting. Base layers are available in light, medium, and heavy weights. Light layers suit aerobic activity where sweat dispersal is paramount. Midweight underwear provides moisture control and insulation for stop-and-go activities. Heavy layers are best in very cold conditions, or when you're relatively inactive. Mid-Layer The mid-layer provides insulation and continues the transportation of moisture from the inner layer. To slow heat loss, this layer must be capable of retaining the warmth generated by your body. Wool and synthetics are well suited to this because the structure of the fibres creates small air spaces that trap molecules of warm air. Additional features, such as pit zippers and full-length front zippers, allow venting. As with the inner layer, this layer should be snug but not constricting. Outer Layer The outer layer protects you from the elements and should allow air to circulate and excess moisture to escape. For dry conditions, a breathable (uncoated) wind shell or a smooth-surfaced soft shell may be all you need. If you expect conditions to be more severe, a waterproof (coated) rain jacket might be adequate. A shell made of a breathable and waterproof fabric, such as Gore-Tex, will protect you from wind and rain, and allow water vapour to escape. |
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Feb 3rd, 2012, 21:40
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只看该作者 #124 |
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Sr. Penguin
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Jacket Facts
Waterproof-Breathable Jacket Whether you're travelling fast and light on a high ridge top, or low and wet in a brush-filled gully, or merely strolling along a city street on a blustery day, there's a waterproof-breathable jacket that will fit the bill. At MEC we reserve the word "waterproof" for garments that keep you dry in rain, snow, sleet, and just about any other airborne sogginess. To be considered waterproof at a jacket must have: a waterproof-breathable membrane or laminate or a non-breathable polyurethane coating. a factory applied, water-shedding, durable water repellency (DWR) surface treatment to cause rain and water to bead and roll off full seam taping Face Fabrics A garment's outside fabric affects performance as much as design and features do. Polyester and nylon differ in their inherent waterproofness and abrasion resistance, so choose an external fabric that suits your intended use. Polyester Polyester is inherently quick drying and water-repellent. It absorbs only a tenth as much water as nylon, keeping the inside surface of the garment warmer and reducing interior condensation. Unlike water repellent DWR finishes applied to a fabric, polyester's low absorbency is integral and will not wear or wash off. However, polyester is less abrasion resistant than nylon, so for high-abrasion pursuits, such as bushwacking, choose a more durable nylon garment. Nylon With its high abrasion resistance, nylon is the preferred face fabric for garments meant for rugged uses such as climbing and mountaineering. Although not as water repellent as polyester, good-quality nylons offer excellent durable water repellency. New lightweight nylon fabrics are supple and compressible, but still offer tough protection. Innovations such as false-twist yarns add durability in high-wear areas and improve rain and snow shedding ability. Fit You may have found that two different styles of MEC jackets fit very differently even though they're the same size. That's because the fit of any garment directly affects how well it will (or won't) function for a particular activity. That's why we fine-tune the fit of every item of MEC clothing to its intended use. Every MEC men's medium jacket is sized for a 33in. waist and 40in. chest. But the fit, or cut, varies according to its purpose. Generally speaking a jacket made for ice-climbing or light and fast mountaineering is cut just big enough to slip over a low-profile soft shell garment, so that both can slide under a climbing harness without bunching up. On the other hand, our more casual, all-around jackets have a slightly looser/relaxed fit that is comfortable to wear over bulkier insulating layers. |
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Feb 8th, 2012, 23:52
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只看该作者 #134 | |
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Senior Member
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CIR NW Top 1 producer in 2012 Cell: 403-803-0123 Teach Yoga in Mandarin Fridays 7：30~9：00 pm, http://blog.sina.com.cn/simuweiwei |
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Feb 10th, 2012, 09:27
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只看该作者 #135 |
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Sr. Penguin
注册日期: Jul 2004
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Feb 12 Sunday Hiking
Where: Fishcreek/Lacome C-train Station There is a building where you buy and validate tickets. Very nice place. When: Sunday Morning 9:30AM Route: Fishcreek to Heritage, total about 19km. |
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感谢 addict 此篇文章之用户： |
Niyama (Feb 10th, 2012) |
