if shoulder bags were provided with thin straps we would feel the bag has more weight and pressure on our shoulders , and sometimes the strap may also break because of the pressure .that's the reason why
shoulder bags are provided with broad straps
Broad straps reduce the pressure produced on the shoulders. The weight of the bags divided by the strap width across shoulder, is the pressure.
A spaghetti strap is a very thin shoulder strap used to support clothing, while providing minimal shoulder straps over otherwise bare shoulders.
this is because the broad straps increase the area of contact which result in decrease of pressure. so with the same load we feel more comfortable with bags with broad straps than the bags with narrow straps..
The best place to get a replacement should strap is at the site "Strap Works". They have straps in a variety or materials for bags, purses, camera cases and other item that uses such a strap.
Straps is the plural of strap
The shoulder straps don't have any purpose while the device is in use. To the contrary they are only there to keep it from falling off when the user doesn't have the strap tightened to support his back. You'll often see driver walking around with their back straps dangling by the shoulder straps whenever they don't need to lift heavy boxes.
Coins described as "Strapless" refer mostly to New Zealand coins that show Queen Elizabeth II having no shoulder straps on her garment. This little peculiarity includes all coins of the New Zealand currency in various years from 1953 to 1957 inclusive. For the New Zealand Threepence specifically, all Threepences minted in 1953 and 1954 were minted with "no shoulder strap". An unspecified quantity were minted with "no shoulder strap" in 1955 and, an estimated 300,000 were minted with "no shoulder strap" in 1956.
The satchel purse - The satchel purse is a scaled-down version of this that loses the two shoulder straps for the over the shoulder strap. The satchel purse also features an adjustable shoulder strap, a flap covering, and numerous stylish pockets that outline the front exterior of the bag.
Either get two belts and wear one normally and the other across your shoulder or buy a military shoulder strap.
get more straps
Tray With Shoulder Strap
The weight of normal lap top is less than 10Lbs, so the width and strength of normal strap can easily bear it. The thickness of strap and the soft texture is important for comfort of owner of computer. One can notice thses straps are about 2" broad about quarter inch thick.