Rob Lowe wears a pair of Ray-Ban 2140 Wayfarer sunglasses in the 2011 movie I Melt With You. 

He wears a tortoise version, as pictured on the left.

Own these iconic shades:

Shop at Ray-Ban ($180)
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🔥 Why I love these
I’ve got a pair of black Wayfarers in my personal collection. With a timeless design that looks good on everyone, it’s no wonder they’ve shown up in countless films and series over the past 50 years. They’re easy to wear, effortlessly cool, and a must-have classic.

Reference: Ray-Ban Wayfarer - Color: Havana (tortoise) frame color code 902