Start here if you want the shape that lifts the outer corner of the face. Gucci's Cat Eye Sunglasses come in two acetate versions, plain black and a pink and orange tortoiseshell, both with Gucci on the temples. The 58mm Cat Eye is Havana with GG accents and tinted lenses, and the 58mm Gradient Cat Eye is black with a golden logo on the temples and Italian-made gradient lenses. Tip: pick the tortoiseshell if you mostly wear black, because it softens the whole outfit. What I would skip: gradient lenses at night, since they are made for sun.

Square is the shape for anyone who feels a round face needs corners. Gucci's 62mm Oversized Square is a Japanese-made gold metal frame, and the 60mm Gradient Square is also gold, lightweight, with gradient lenses and full UV protection. The 59mm Square is a bold black frame with logo embellishments and UV-blocking lenses, and the plain Square Frame is shiny black injection with an Interlocking G motif. Tip: if you wear your hair up, choose the metal ones, because the thin arms do not fight with a ponytail or a clip.

This is the lighter group, and the one I would pack for a trip. The Gucci Eyewear aviator-style leather-trimmed pair is gold-tone metal, made in Italy, with slim arms and leather trims that recall pairs from the seventies. Right beside it, Gucci Eyewear's black acetate aviator carries signature horsebit hardware, a detail from the house's loafers. Then two ovals: a slim gold-tone oval frame, and the GG2233S 55mm in gold with polarized gradient lenses, also Italian-made. Tip: try the oval with a high ponytail and no other jewelry, so the thin metal reads as the accent.

Narrow rectangles are the most office-friendly pair in the whole set. Two Rectangular-frame Sunglasses are slim acetate, one black and one brown tortoiseshell, each with Gucci lettering on the temples. The Rectangular Frame in dark tortoiseshell is shiny injection with an Interlocking G motif, and the 54mm Rectangular is black, full coverage, with polished logo hardware on the temples. Tip: if your brows are strong, choose a frame that sits just below them, and the slim top edge will frame rather than cover them. What I would skip: the black pair if you already own three black ones.

The last group is the dramatic one. Gucci's Round Frame Sunglasses come in black acetate and in an oversized orange tortoiseshell acetate that I would wear with a plain white shirt. Then the shields: the 74mm Gradient Oversize Shield is black, one-piece, in a lightweight injection-molded frame, and the GG2276S 80mm is a silver, rimless-looking wrap style with minimalist metal temples and branded lens details. Tip: a shield covers a lot, so keep your hair and makeup simple and let the lens do the work. The silver one also looks good with a plain gray sweatshirt.

Choose Gucci sunglasses for where you are most of the day, not for how they look on the shelf. If you drive and walk a lot, take a lightweight metal pair. If you sit at a patio table with friends, take the oversized acetate. Try each on with your actual hair and your usual collar, then smile. If the frame stays put when you do, it is the one you will wear until the lenses scratch. If you want to keep browsing, I also put together Best Everyday Sunglasses and Best Oversized Sunglasses.