Feature: It helps to guard the hip and tailbones of our children and old men against shattered when falls down or slids down. Breathable Material: The material is lightweight and soft to wear inside or outside pants. The mesh vent strap in front is breathableto wick out moisture and keeping a fresh and cool fit. Elastic fabric and Adjustable Waist: The adjustable waist with cushion padding inside is adjustable to meet each size demands for waist circumference. The elastic fabric is easy to take on and off with stickers. Great to fit even when kids growing up.Protective Gear for: Skiing, snowboarding, ice skating, figure skating, roller skating, skateboard, scooter, derby and most indoor and outdoor sports. size: XXS (25-35 catties), refer to waist circumference 48-54cm XS (35-50 catties), refer to waist circumference 52-58cm S (50-70 catties), refer to waist circumference 56-66cm M (70-90 catties), refer to waist circumference 60-74cm L (90-110 catties), refer to waist circumference 70-80cm XL (110-130 catties), refer to waist circumference 74-88cm XXL (130-170 catties), refer to waist circumference 80-105cm XXXL (170-200 catties), refer to waist circumference 100-120cm Delivery quantity: 1 piece,