Justin Bieber & Hailey Baldwin Go Jet Skiing in Miami!
The 21-year-old singer wore a life-vest over his shirtless body and showed off his Calvin Klein underwear, which became a bit see-through after getting wet!
Justin and Hailey were also seen hanging out by the pool with pals earlier in the day.
FYI: Hailey is wearing Acacia swimwear.
55+ pictures inside of Justin Bieber and Hailey Baldwin jet skiing in Miami…