Possible Clues:

• Summer clothing portmanteau
• Portmanteau for denim cutoffs
• Tightfitting denim attire that Tobias wears at all times on 'Arrested Development'
• Summer denim wear, slangily
• Knee-length denim garment, perhaps
• 'Dear Men, You Seriously Need To Stop Wearing ___' (denim-related 2014 Buzzfeed article)