PROBLEM TO BE SOLVED: To provide biometric data acquisition ware in which displacement of electrodes is suppressed. SOLUTION: The biometric data acquisition ware 100 has a waistline portion 110 that covers the waistline and a first shoulder portion that is provided on the neck side of the waistline and allows one of the shoulders to pass through. The cloth part 100A is formed of a certain mesh cloth, and includes a clothes part 100A worn by an animal, and a pair of electrodes 130A and 130B provided on the inner surface of the clothes part. [Selection diagram] Figure 1【課題】電極の位置ずれを抑制した生体データ取得ウェアを提供する。【解決手段】生体データ取得ウェア100は、胴回りを覆う胴回り部110と、前記胴回り部の首側に設けられて両肩のうちの一方の肩を通す第1肩部とを有し、伸縮性のあるメッシュ生地で構成され、動物が着用する衣服部100Aと、前記衣服部の内側の表面に設けられる一対の電極130A,130Bとを含む。【選択図】図1