Rainwear comes in a range of forms, depending on the temperature and your activity level.
- If it's just a shower or the air is warm, you may choose to throw on an ultra-thin "disposable" clear plastic poncho. These handy little items are usually available at the local convenience or discount store for mere pocket change. They come folded up into a plastic pouch about the size of a thin pocket book. With abbreviated sleeves and a hood, they reach down to mid-thigh. Unless you're portaging through a briar patches, they can be used a number of times. However, it's a longshot you'll ever be able to fold one up so it goes back into its little pouch.
- More substantial are ... the traditional soft vinyl poncho (in army green and reeking of its chemistry's "softening" component) ... and the nylon poncho (coated inside with a waterproof layer). These are good candidates for dealing with heavy summer downpours. Usually being longer and having more volume, they serve well for rainy visits to the "thunderbox". With help from a co-camper, you can even drape one over a backpack.
- As the temperature drops, mid-layers can be added under your poncho. However, when the temperature drops to the point where your legs are getting cold, when mid-layers are too bulky under your poncho or when the wind starts to fling your poncho about, its time to consider changing into more substantial rainwear.
- More substantial and costly rainwear is made from polyester and nylon fabric (coated inside with a waterproof layer) into jackets, raincoats and pants. Jackets feature shockcord-toggled hoods and waists, plus Velcro® secured cuffs and collars. Pants feature Velcro® secured cuffs and two-way zippered legs for "cooling-off". Being undercoated with a waterproof layer, this type of rainwear fails to "transpire" sweat.
- "Breathable" rainwear has an outer shell of nylon or polyester, to the inner side of which is laminated a membrane of Gore-Tex® or Sympatex®, which is in turn protected by a laminated backing or sewn-in lining. These hi-tech membranes have microscopic pores which are so tiny that water droplets cannot enter, but which are large enough to allow water vapour (sweat) to "transpire". Being made from such a sophisticated fabric, this type of rainwear is priced expectedly high.
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