FEATURES:Durable & Lightweight4-Way StretchCrotch GussetQuick DryUpper Hip "Mag Pockets" (both sides)Dual Zip-Closure Leg PocketsKnife Clip Patch94% Nylon | 6% SpandexFIT: Standard Fit Pants have a silhouette running straight down to the ankle. They have a consistent leg width, offering a comfortable and classic fit.Why is there no 40&';&';-44&';&'; waist?All larger waist pants taper, and we noticed that past 38&';&'; waist the .0 style and .1 style were nearly the same so we opted to not go past 38&';&'; in the 5.1&';s. 5.0&';s should work fine for you.