Abstract: Provided are shoulder straps for a backpack in which the entire width of the shoulder strap is brought into contact with the shoulder from the upper joint portion with the backpack main body to the front part of the shoulder, thereby capable of dispersing a load concentrated on a local part of the shoulder, and a backpack including the shoulder straps for a backpack. A pair of left and right shoulder straps for a backpack, each of the shoulder straps for a backpack includes a core material having elasticity and a surface fabric covering the core material, wherein the core material has a difference in elevation so that a thickness of an outside of each shoulder strap is thicker than a thickness of an inside of each shoulder strap at least at a portion contacting a body.

Abstract: Provided are shoulder straps for a backpack in which the entire width of the shoulder strap is brought into contact with the shoulder from the upper joint portion with the backpack main body to the front part of the shoulder, thereby capable of dispersing a load concentrated on a local part of the shoulder, and a backpack including the shoulder straps for a backpack. A pair of left and right shoulder straps for a backpack, each of the shoulder straps for a backpack includes a core material having elasticity and a surface fabric covering the core material, wherein the core material has a difference in elevation so that a thickness of an outside of each shoulder strap is thicker than a thickness of an inside of each shoulder strap at least at a portion contacting a body.