These USA glass-lens plastic-frame men's sports sunglasses are shades that can be worn during your daily lives and while you're participating in your favorite physical activities. Although, it might seem like these sunglasses aren't aerodynamic and will slow you down, you have to wear them first before you make such an assessment. If you decide that these glasses are for you, it's important that you fill out your ensembles with other aerodynamic items. Once you have an outfit that's completely aerodynamic, you will be able to seize the day.