Features: -mirror glass -Designed by moms with toddlers in mind, we use the latest technology to make these toddler shades super comfortable for your child! -Flexible: virtually unbreakable, super lightweight, durable tpee frames -Safe -Polarized: shatter-resistant tac lenses that reduces glare -UV protection: 100% UVA UVB sun protection with UV 400 lenses -Stay-on strap: Each pair comes with a removable and adjustable strap -Kids’ and parents’ favorite shades! -Unbreakable -Specially designed for younger children, all JAN & JUL toddler shades are BPA, Phthalate and PVC free -Conforms to all CPSIA standards -Each pair of toddler shades comes with an adjustable strap. Peace of mind for babies and toddlers, your kids can also use the stay-on strap to run jump play or do sports safely. The strap is also adjustable, so it grows with your child for years of use