| 首先谈一谈帐篷。 这些年来，帐篷的革新，以及在户外生活中的普及，使得这类产品的分类越来越明细，而各大品牌下都能发现一个系列，即：SUPERLIGHT，HYPERLIGHT或ULTRALIGHT超轻系列帐篷，轻意味着PACKLIGHTLY，意味着更小的打包体积，在不是恶劣的环境下，只满足徒步及穿越的需要时，可以告别沉重和巨大的困惑，取而代之的是享受科技进步带来的舒适和轻松，背包的时刻并不总是负累。从前几年的EUROHIKE225（3。5KG）的流行，到ACME小两洞（3。2KG），再到现在的SNOWWOLF徒步营（2。6KG）。帐篷的发展趋势是轻量化。 在此，先介绍几顶帐篷，然后再加以分析比较，比较的目的，并不只是指标上的对比，而是通过比较，理解设计的思路，感受科技的进步。 这些帐篷都为独立支撑设计也叫穹顶式帐篷，1人，1-2人或双人帐，单层，单层加半层外帐及双层帐，基本上为满足三季需求而设计。 举例如下：
MOUNTAIN HARDWEAR TENT
SUPERLIGHT系列中的AIRJET 2 
price $285.00
weight 3 lb 15 oz / 1.8 kg
packaged weight 4 lb 8 oz / 2 kg
type 3 Season/Superlight
capacity 2
length 7 ft 2 in / 2.2 m
width 4 ft 6 in / 1.4 m
doors 1
poles 2
brow pole yes
vestibule pole no
UVX windows 1
mesh windows 0
interior height 3 ft 3 in / 1 m
tension shelves 1
total area 37.44 ft? / 3.48 m?
floor area 29.91 ft? / 2.78 m?
vestibules 1
vestibule area 7.53 ft? / 0.7 m?
packed diameter 5.1 in / 13 cm
packed length 1 ft 6 in / 46 cm
fly fabric Superlight 30D Fly
panel fabric No-See-Um Netting
poles Easton 7178 T9
tent floor Superlight 2000 Nylon 
Features:
Integrated front vestibule
Back-tacked stress points add strength and durability
Large mesh pockets and webbing hang loops keep things organized inside the tent
Tent package includes; stuff sack, pole sack, peg sack, aluminum stakes, Seam Grip and owners manual
Non-hydrolyzing, polyeather coated floor fabric
Bias bound zippers allow for ease of use and extended zipper life
D-shaped doors stay off ground when open
Off-ground perimeter seams form a waterproof tub
Opposing double slider fly zippers for ease of ventilation
Large, clear, non-yellowing, non-clouding UVX film windows
Free standing
Water-resistant, inverted fly zippers with storm flaps
#8 YKK zippers with nickel-plated sliders and pull-tabs for durability and noise reduction
Rubber shock cord for maximum resilience in temperatures ranging from -60 to 120 F
Non-wicking grommet tabs with adjustable buckle
Catenary-cut seams create taut canopy and improve fly strength
Modified tension shelf
Taped, full coverage nylon fly with silicone coated outer and polyurethane coated inner
Superlight materials minimize weight without sacrificing features
Large stake out loops accept skis and pickets
Single front door entry with mesh panel
Fly attachment system is adjustable, will not freeze or collect snow and is field repairable
Locking pole tips for ease of set-up
Taped floor seams (not all tents have a floor seam)
CrossFlow construction: fly welded to floor, complete floor perimeter venting, ceiling venting
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