These girls bike shorts that allow lots of stretch and ease, their available sizes that fit for toddlers kids to teens. made of 20%Modal,40% Cotton,40% Polyester, with good breathability; featured with elastic waist that make your kids comfortable and easy to wrap on. Fit perfectly as under dress and safe pants, young girls can be secure to wear her tights and short dresses without worrying about accidental exposure while running and jumping Suitable for sports, dancing, school or under skirts for added coverage, work great under a dress, short skirt, shorts, long tops, even jeans, ideal for bedtime, gym, yoga, cycling, swimming, dancing, playground size chart: Recommended age: 2-3 Years Size: 100 US: 2 Years Waist: 42cm/16.54'' Length: 33cm/12.99'' Recommended age: 3-4 Years Size: 110 US: 3 Years Waist: 44cm/17.32'' Length: 35cm/13.78'' Recommended age: 4-5 Years Size: 120 US: 4 Years Waist: 46cm/18.11'' Length: 37cm/14.57'' Recommended age: 6-7 Years Size: 130 US: 6 Years Waist: 48cm/18.90'' Length: 39cm/15.35'' Recommended age: 8-9 Years Size: 140 US: 8 Years Waist: 50cm/19.69'' Length: 41cm/16.14'' Recommended age: 10-11 Years Size: 150 US: 10 Years Waist: 52cm/20.47'' Length: 43cm/16.93'' Recommended age: 12-13 Years Size: 160 US: 12 Years Waist: 54cm/21.26'' Length: 45cm/17.72'' Material:20%,40% Cotton,40% Polyester Care: Machine washable Closure: Pull-on style; elasticized waist for added comfort Season: Spring, Summer, Autumn, Winter Pattern Type: Solid