Many athletes, professionals and weekend warriors alike, are trying elevation training masks, believing the increased difficulty of working out at a higher altitude could be what they need to get a competitive edge. The mask simulates limited oxygen intake at high elevations so the body has to work harder to get the same results.

RELATED: How Should I Work Out with The Training Mask 2.0?

The following professional athletes represent only a few of those embracing the mask—and how it makes you look  how do you say, like Hannibal Lecter? Creepy or badass, the training mask selfie lets everyone know you mean business. How can you not take a selfie before your workout?

Darnell Dockett

Caption: Last time I put a mask on I had, Nevermind Thx to @trainingmask for damn near killing me today. real! Felt like I was gonna pass out but then I started to think about next football season then it was easy! #8.0dockett

Dwyane Wade

Jabari Price

Caption: Just taking my game to another level one day at a time with the help of @trainingmask of course. #TeamNoSleep #IonGetTired #TrainingMask

Jerome Cunningham

Caption: Cardio, I Do Cardio!!! I’m In Love With The Cardio!!! #NFL #24/7 #IDGT #MindOverMatter @trainingmask

Corey Washington Jr.

Caption: Heading to workouts like

Carlos Dunlap

Caption: Day2 try somethin new… Still got Pilates after tho #EatiN #TrainingMask

Shawn Lemon

Caption: Late night cardio with @trainingmask #Justbreathe #Lemondrops

DeMarcus Lawrence

Appreciate my agent @davidcanter for hooking me up with @trainingmask while training @bommaritos. #thereisnooffseason pic.twitter.com/KEHfVoSSpC

— Demarcus Lawrence (@TankLawrence) February 10, 2015

Terrance West

Caption: Look me in my eyes and tell me what you see! I see a #Monster

 

Nicolas Kyrgios

 

 

Carlos Gomez

 

 

Tajh Boyd

 

 

Elvis Andrus

Caption: With my bro @officialprince84 mask day

Lawyer Milloy

Caption: Back in the gym today. Ok @beastmode I got my 3yr on *911 duty incase daddy passes out. #beastmode #trainingmask

Carlos Hyde

Caption: #Monster

Robert Alford

Caption: 2 Thessalonians 3:10 For even when we were with you, we gave you this rule: “The one who is unwilling to work shall not eat.

Meyers Leonard

Caption: Nice way to start 2015. Late night cardio session solo dolo. @trainingmask #ElevationTraining #WirelessBeats #RipCity

Tahir Whitehead

Dez Southward

Kurt Heyer

Yasiel Puig

Marshall McFadden

Brian Tyms

Daren Bates via Tavon Austin