Jasper Twill HD Coverall - Navy/WhiteThe Coveralls from Double RL are made with 6. 6oz Japanese cotton jasp twill that features chainstitched logo embroidered at the left chest and across the back for a 1950s inspired look. They have a relaxed straight leg fit that runs true to size and come detailed with American made metal buttons, utility pockets and hammer loop, and have been Sanforized to minimize shrinkage. 6. 6oz Japanese cotton jasp twill Chainstitched Double RL above the left