Glasses case, storage bag, protective case} Parsing Steps: 1. Removal of marketing terms: modifiers such as "male and female", "compound KT", and "portable" are removed 2. Retain the core noun: glasses case/storage bag/protective case belongs to the func

▸ Product type: clip-on glasses storage sleeve
▸ Applicable lens type: sunglasses/optical glasses/sunglasses universal
▸ Structural features: folding portable pendant design
▸ Protective performance: scratch-resistant lining layer
▸ Accessory configuration: independent storage unit ×1