Men's 3/4 Length Midweight Bottom Form Fit Mid Rise Interlock knit Covered elastic waistband traditional fly design Flatlock construction designed to eliminate chafing Size M/Inseam: 20.5" The 3/4 length midlayer bottom comes with all the same features as the full length plus Merino warmth and durable interlock knit. The shorter length prevents bunching and allows for more calf-room inside the boot. Smartwool Men's NTS Midweight 250 Boot Top 3/4 Bottom