noun
sleeve length (Western clothing)
Refers to the length of a sleeve on Western-style garments, measured from shoulder to cuff.
このジャケットは袖丈が少し長いので、直してもらいます。
The sleeves on this jacket are a bit long, so I'll have them altered.
noun
sleeve height (traditional Japanese clothing)
Used for traditional Japanese garments like kimono, where sleeve length is measured vertically from the shoulder seam to the bottom edge of the sleeve.
着物の袖丈は、身長に合わせて決めます。
The sleeve height of a kimono is determined according to one's height.
Compound of 袖 (sode, 'sleeve') and 丈 (take, 'length'). The reading そでたけ is a straightforward combination of the two components.