Like the classic Carbon Air suits

SCS Coating: The SCS (Super Composite Skin) film on the pelvis and abdomen forms a water-repellent barrier and protects the suit from nail cuts

we are talking about square elasticity

Furthermore

Compression seams on the inside of the leg for added muscle support

Accappatoio Arena Zeppelin Light Junior Size:8-9 years - 128 cm. Like the classic Carbon AirThe Junior Zeppelin Light bathrobe is made of soft cotton, which can quickly absorb water from the skin and hair. It also takes up very little space when folded or rolled up, so you can store it easily. The hood and pockets make it practical and comfortable to wear once you get out of the water. This model is available in different colors, and has the arena writing in white on the chest. The belt is adjustable for a perfect fit. Maintenance