Trousers sewn from same fabric

Abstract

Trousers sewn from same fabric include a trouser body sewn from at least one flexible fabric that has a trouser trunk to cover a wearer's leg and a trouser head to encircle wearer's waist. The trouser head includes a trouser head fastener and a housing space formed inside thereof and extended along the wearer's waist. The housing space has two distal ends corresponding to two sides of the trouser head fastener and also holds an elastic strap inside. The elastic strap has two sewing sections sewn on the trouser body corresponding to the two distal ends. The elastic strap and the trouser head fastener are formed at a combined length same as the length of the trouser head. Thus the trouser head and the trouser trunk are adjustable at the same time according to wearer's body shape.

What is claimed is: 
     
         1 . A trousers sewn from same fabric, comprising:
 a trouser body which is formed by sewing at least one flexible fabric and includes a trouser trunk to cover a leg of a wearer and a trouser head to encircle the waist of the wearer, the trouser head including a trouser head fastener and a housing space formed inside thereof and extended along the wearer's waist, the housing space including two distal ends corresponding to two sides of the trouser head fastener; and   an elastic strap which is located in the housing space and includes two sewing sections sewn on the trouser body corresponding to the two distal ends of the housing space, the elastic strap and the trouser head fastener forming a combined length same as the length of the trouser head.   
     
     
         2 . The trousers sewn from same fabric of  claim 1 , wherein the elastic strap is formed at a width smaller than the width of the housing space. 
     
     
         3 . The trousers sewn from same fabric of  claim 1 , wherein the elastic strap is formed at a width same as the width of the housing space. 
     
     
         4 . The trousers sewn from same fabric of  claim 1 , wherein the elastic strap includes at least one rear waist sewing section sewn on the trouser body corresponding to the rear waist of the wearer. 
     
     
         5 . The trousers sewn from same fabric of  claim 1 , wherein the elastic strap includes a plurality of spaced fastening sewing sections sewn on the trouser body corresponding to the trouser head. 
     
     
         6 . The trousers sewn from same fabric of  claim 1 , wherein the elasticity coefficients of the elastic strap and the flexibility fabric differ in a range from 0 to 5%. 
     
     
         7 . The trousers sewn from same fabric of  claim 1 , wherein the trouser head fastener is selectively a zipper or a button. 
     
     
         8 . The trousers sewn from same fabric of  claim 1 , wherein the elastic strap includes two side waist sewing sections sewn on the trouser body corresponding to two side waists of the wearer. 
     
     
         9 . The trousers sewn from same fabric of  claim 8 , wherein the elastic strap includes at least one rear waist sewing section sewn on the trouser body corresponding to the rear waist of the wearer.