- 88% Polymade, 12% Elastane - True to size - Model is pictured in a size small Take your workout look to the next level in our Selena Biker Shorts. These comfy, supportive shorts are perfect for any athletic activity - they'll keep you feeling confident and looking cool while you're pushing your body to the limit. Plus, they come in a sleek blue hue, so you can wear 'em with style!