1.a Padding Design EVA net structure pads provides average Shock absorption,and provides overall protection for your lumbar, butt, crotch, thigh and arms. Maximum effectiveness reduces your damage during sports.It helps to guard the hip, tailbones, knees and arms of our children and old men against shattered when falls down or slids down. 2. density Breathable Material The knee pads/elbow pads/padded shorts material is lightweight and soft to wear inside or outside pants. The mesh vent strap in front is breathable to wick out moisture and keeping a fresh and cool fit.Environmental EVA materials which is Nontoxic surely there is no harm to your body,yet it's durable means it can provide a long service lifetime 3.Adjustable Stretchy The pads can adjust according to your waistline so that it can fit for your body,Thickening structure strengthen the pads offer the dual protections for your body.The elastic fabric is easy to take on and off with stickers. to fit even when kids growing up. 4.Easy Storage Packing Bag Separate packing bag included for easier carrying on and item stock in case of item lost. 3D Padded Protective Shorts is absolutely a gear for sports.