スピードのインスタグラム(speedo) - 9月28日 06時42分

The windscreen wiper is an effective butterfly drill in the pool. Watch this clip to watch it being done correctly! For more clips and advice, sign up to Speedo On to track your swims > on.speedo.com

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する