This season, designers stripped fashion down to its original function—as a safeguard against the elements. From fireman vests to knitted ski masks, this trend was most apparent on the scaffolding runway of Calvin Klein 205W39NYC’S show, but other luxury houses matched the brand’s enthusiasm with the likes of leather-lined bike helmets (Berluti) and bungee rope backpacks (Givenchy). Hi-viz orange not your hue? What about camouflage tees and parkas from Off-white and Louis Vuitton respectively? You know what they say—better safe than sorry.