The best workout hairstyle under a cap is a tight ponytail or compact bun pulled through the back opening of the cap. Your hair stays out of your face, the cap stays secure and your hairstyle survives the workout. How this works for running, the gym, tennis or a beach day, which hairstyle fits which sport and how to protect your hair and scalp in summer: you'll find it all in this guide.
Which hairstyle holds up best during workouts under a cap?
The high, tight ponytail is the most reliable workout hairstyle under a cap. It keeps hair off your neck and swings in a controlled way with your movement. The key is that the cap doesn't flatten your hairstyle: With a traditional closed-back cap, you'd have to position the ponytail low on your neck, where it hits your shoulders when you run. A cap with a ponytail opening like the PonyLoop® Original lets your ponytail out at any height. For calmer sessions like yoga or walks, a loose, low ponytail works too.
How do you get the high ponytail perfect for running?
Tie your ponytail at the height of an imaginary line between your ear tip and the back of your head. High enough to swing freely, but not so high that it hits the cap with every step. Use a hair tie without metal parts and wrap it one extra time so nothing slips. Then put on the cap and pull the ponytail through the opening: With the magnetic closure of the Original, the back closes around the base of your ponytail. With the CrissCross opening of the Vintage, the crossed elastic bands hold everything in position under light tension. You'll feel the difference during fast intervals. Quick head shake test before you start: If everything stays put, you're ready to go.
How do you wear a bun or messy bun under the cap?
A compact bun at medium height is the most comfortable solution for the gym: It doesn't get caught between your head and the bench during bench press or crunches, and it fits completely through the ponytail opening of the cap. For the messy bun: put on the cap first, then pull the bun through the opening and shape it. It stays loose without falling apart during your workout. The CrissCross design of the Vintage and the Glitter adapts to high and low variations, from a strict ballerina bun to a casual weekend bun.
Do braids work under a cap?
Yes. Braided hairstyles are actually some of the most athletic solutions because they keep hair under control for hours. A single French braid or Dutch braid runs down the center of your head and pulls easily through the back opening of the cap. With two boxer braids, you can pull both through the opening together or let them run out to the sides below the cap. The advantage for summer workouts: braided hair doesn't tangle in the wind, and after your workout you can undo the braids and get wavy hair without any heat styling.
How do you protect your hair and scalp from summer sun?
With coverage, not just sunscreen: Your part is the most frequently forgotten spot during outdoor workouts, and that's exactly where the midday sun hits most directly. A cap with tightly woven fabric and a brim protects your part, forehead and face. The PonyLoop® Original is lightweight, breathable and equipped with UV protection, so your head stays comfortably cool even in the heat. Your hair benefits too: UV rays bleach out color and dry out your lengths. What's under the cap is protected. For long beach days, still apply sunscreen to your neck and ears, since they're outside the shadow of the brim.
What helps with flat hair and frizz after a workout?
The most important trick: don't let your hairstyle get flattened under the cap in the first place. That's exactly what the ponytail opening is for. Your roots keep their volume because the ponytail or bun sits outside the cap instead of underneath it. After your workout: take off the cap, loosen the hair tie, flip your head upside down once and shake it out, then loosen the roots with your fingers. Let sweaty hair air dry before you tie it up again. And the cap itself? Hand wash with cold water and air dry. That's how you keep the shape and color. You'll find more care and fit tips in our FAQ.
Checklist: What do you need for summer 2026 workouts?
In short, this is your gear for training with long hair:
- A cap with a ponytail opening: Original (magnetic closure) for changing hairstyles, Vintage or Glitter (CrissCross) for secure hold during intense sessions.
- Hair ties without metal, a spare tie in your gym bag.
- Sunscreen for your neck and ears on long outdoor days.
- The right fit: one size 54–62 cm; for smaller head circumference, use the included sizing clip. Details in the FAQ.