Best Squat-proof Leggings: The Upside Indigo Tiger Midi Leggings Don't be fooled by the thin, lightweight material that The Upside Indigo Tiger Midi Leggings (£33, originally £109) are made from — these are both comfortable and squat-proof. Image Source: fashercise.com The Upside Indigo Tiger Midi Leggings £33 from fashercise.com £109 £33 from fashercise.com Buy Now