Suns out, guns out! We’re talking about your arms! If you’re a little bit worried about rocking short sleeves or showing off your shoulders this summer season, we have some suggestions to help you build them up. Professional trainer and IFBB Bikini Pro, Lizzie Martienz, walks us through some simple exercises that you can do anywhere to help you tone your arms. She explains that if you stay consistent with your workouts, you’ll be rocking sleeveless outfits all season long! Take a look!.