රබර් සෙරෙප්පු

රබර් සෙරෙප්පු (en:thongs,pluggers,flip-flops, orjandals) යනු නිවෙසන් පිටතට යාමෙදී පාආවරණයක් ලෙස පළදින රබර්උ ඇසුරින් නිපදවූ පැළදුමකි,පාදයක ආකෘතිය ගත් පැතලි පතුලක් හා  Y අකුරේ හැඩය ගත් පටි යුගලකින් සමන්විතය,පාදයේ මහපට ඇගිල්ලට හා දබර ඇගිල්ල අතරට පටිය සවිවනසේ සකසා ඇත.
රබර් සෙරෙප්පු ලෙස හැඳින්වුවද මේවා දැන් වෙනත් කෘතිම අමුද්‍රව්‍ය යොදාගෙනද නිපදවයි.
Flip-flops are a very basic type of footwear. They are essentially a thin rubber sole with two simple straps running in a Y shape from the sides of the foot to the join between the big toe and next toe.  Some include a strap along the back heel. The popular use of flip-flops as simple warm climate beach or outdoor wear has spread through much of the world, although it is most common inIndia(where it is immensely popular and called aHawaii chappal),ඕස්ට්‍රේලියාව,නවසීලන්තය,USA,Brazil, thePacific Islands, andඅග්නිදිග ආසියාව.
In mostdeveloping countries, rubber flip-flops are the cheapest footwear available, often typically costing less than$1. Some measures may be used to reduce cost, such as making them out of recycled tires.Because of their low cost they are very widely used in these countries as typical footwear instead of a fashion statement. Despite their disposable design, street vendors will repair worn sandals for a small fee
However in many developed countries flip-flops are typically treated as annual or seasonal, short lasting footwear.  Depending on the material makeup of the shoe, the average pair of flip-flops lasts a year or less.  The strap between the toes can snap very easily after moderate use, and although this problem can be solved by using replacement straps that are easily "snapped" into the flip-flop, most people do not bother to repair flip-flops because they are very inexpensive and easily replaced.
These disposal habits may pose an environmental problem because most flip-flops are made withpolyurethane, which comes fromcrude oil.  This material is a number seven resin and cannot usually be recycled in small amounts.Because of growing environmental concerns, some companies have begun to sell flip-flops made from recycled inner tubes or car tires, as well assustainablematerials likehemp,cottonandcoconut.
Flip flops are also popular with those who enjoy being barefoot but need to wear shoes, because they allow the foot to be out in the open but still constitute ashoefor wear in places such as restaurants or on city streets, and can be quickly and easily removed. They are also popular because they are easy to carry.
On July 19, 2005, some members ofNorthwestern University's national championwomen's lacrosse teamwere criticized for wearing "flip-flops" to theWhite Houseto meet with PresidentGeorge W. Bush. The women pointed out that their shoes were not "beach shoes," but were dressier thong sandals.
The use of flip-flops has also been encouraged in some branches of European and North American military as sanitary footwear in communal showers, where wearing flip-flops slows the spread of fungal infections.  Following on from this, some soldiers and other trampers or hikers have begun carrying flip-flops, or a pair of flip-flop soles sewn to socks, as a lightweight emergency replacement for damaged boots.
The Indian manifestation of the flip-flop, thechappal, has even been known to be deployed as a weapon, both as a truncheon and a missile, although it is more commonly merely a threat.  It is not unheard of for people to whip off their chappals in the heat of an argument, in order to make their aggravation more palpable to the other party. (Touching the shoes or feet of another, in some Indian cultures, is a sign of respect or submission).
Thongs were inspired by the traditional woven soledzōrior "Jongesandals", (hence "jandals").  Woven Japanese zōri had been used as beach wear in New Zealand in the 1930s[1]. In the post war period in both New Zealand and America, versions were briefly popularized by servicemen returning from occupied Japan. The idea of making sandals from plastics did not occur for another decade.
The modern design was invented in Auckland,නවසීලන්තයby Morris Yock in the 50s and patented in 1957. However, this claim has recently been contested by the children of John Cowie. John Cowie was an England-raised businessman who started a plastics manufacturing business in Hong Kong after the war.  His children claim that it was Cowie that started manufacturing a plastic version of the sandals in the late 1940s and that Yock was just a New Zealand importer.The children also say that their father claimed to have invented the name 'jandal' from a shortened form of 'Japanese Sandal'.  John Cowie and his family emigrated to New Zealand in 1959.
Despite 'jandal' being commonly used in New Zealand to describe any manufacturer's brand, the word Jandal is actually a trademark since 1957, for a long time owned by theSkellerupcompany.
In countries other than New Zealand, jandals are known by other names.
In ඕස්ට්‍රේලියාව they are known as thongs. The first pair were manufactured there by Skellerup rivalDunlopin 1960. Thongs became popular there after being worn by the ඕස්ට්‍රේලියානු Olympic swimming team at the MelbourneOlympic Gamesin 1956.
In the UK and U.S. they are most commonly known as flip-flops.
Flip-flops may have been familiar in the United States in the mid-19th century. An 1861 letter to the editor ofThe New York Timesmentioned poorly equipped troops in theSeventh Regiment Volunteerswearing "flip-flaps": "The men were not in uniform, but very poorly dressed, — in many cases with flip-flap shoes. The business-like air with which they marched rapidly through the deep mud of theThird-avenuewas the more remarkable." Later the letter reads: "The men have not yet been supplied with shoes, and yet still march flip-flop. Why?"The letter does not describe the men's shoes in detail, so it is not clear whether it is referring to footwear of the flip-flop style, or perhaps to the poor state of their shoes.
Thongs now come in a variety of shoe styles other than the traditional flat sandal, such as women's heels, slides, and wedges.
The shoes gained popularity as celebrities started wearing them and high end designers started producing them.  Kari Sigerson and Miranda Morrison, founders of Sigerson Morrison, added akitten heelto flip-flops.
Havaianas is a Brazilian brand of flip-flop that gained world recognition in 1998 after the company developed a style of the sandals for the World Cup that featured the Brazilian flag. Although Havaianas flip-flops have only become wildy popular in the United States in the last five years after many celebrities were seen wearing them,the brand has been around since 1962. The brand's famous slogan "Havaianas. The Real Ones." originated in the 1970s as a response to other companies making knock-off versions of the flip-flops. The shoes are known for their comfortable soles and straps. The name Havaianas means Hawaiians in Portuguese.
While widely regarded to be comfortable, flip-flops do not provide ankle support, and can cause many foot-related problems. Some flip-flops have a spongy sole, so when the foot hits the ground, it rolls inward and the sponge allows it to roll even more than usual.This is known as overpronationand causes many problems in the foot. Each time a foot hits the ground, the arch is supposed to be locked to absorb shock. But during overpronation, the arch opens and releases this locking mechanism, leading to problems such as pain in the heel, the arch, the toes and in the forefoot. Overpronation of the foot also results in flat feet, especially if flip flops are worn throughout childhood and adolescence when the muscles, bones, and tendons of the feet are growing and developing. Exacerbating this, some flip-flops force a person to overuse the tendons in the foot, which can causetendinitis.
Ankle sprains are also common due to stepping off a curb or stepping wrong; the ankle bends, but the flip flop neither holds on to nor supports it.The open nature of flip-flops also makes the wearer more susceptible to stubbed toes, and exposes the foot to the environment.  The toe grip can be useful for preventing the foot from slipping forward in a convenient sandal, but flip flops with bands across higher areas of the foot or the arch are recommended for support and keeping the shoe on the foot.  Thong sandals are also popular with the same proportions and structures of flip flops,  but with the addition of a slingback or an ankle strap that holds and supports the foot in a stable position.Arch support is also found in many more expensive and better made flip flops rather than the ubiquitous foam materials.  Spending more on a better quality, better created shoe can influence the wearer's health and safety.  Such shoes are also more commonly endowed with rubberized soles and better cushions.
In 2008, Auburn University researchers found that wearing thong-style flip-flops can result in sore feet, ankles and legs. The research team, who presented their findings at the annual meeting of the American College of Sports Medicine in 2008, found that flip-flop wearers took shorter steps and that their heels hit the ground with less vertical force than when the same walkers wore athletic shoes. When wearing flip-flops, the study participants did not bring their toes up as much during the leg’s swing phase, resulting in a larger ankle angle and shorter stride length, possibly because they tended to grip the flip-flops with their toes. This repeated motion can result in problems from the foot up into the hips.
Flip-flops are also known as jandals inනවසීලන්තය, chappal, Hawaii chappal, Qainchi (scissor-like) chappals inIndiaandPakistan, thongs inඕස්ට්‍රේලියාවandCanada, slip-slops (or just slops) inSouth Africa, go-aheads in the South Pacific, ojotas or chancletas inස්පාඤ්ඤය, chancletas o sandalias inMexico,Central AmericaandSouth America, japanke (lit. Japanese) inCroatia,SerbiaandMontenegroand chinelos inBrazil, kafkafim inIsrael. InHawaiiand several other places around the world, they may be called "slippers".
ජනප්‍රිය වෙළඳ නාම
In recent years, mostmass productionof flip-flops has moved todeveloping countrieswith low-cost labor.  Brands still manufacturing in the United States includeOkabashi(based inBuford, GA) and Island Slipper (based inPearl City, HI).
In Japantabiare a traditional sock with a slot for the thong, andtoe socks(with separate compartments for each toe) also mate with flip-flops.