Fizik Nanuq 2 GTX Shoes No-Excuse Winter Riding When it's cold, wet, and muddy enough to turn most riders toward the couch, these shoes exist to keep you on the trail. The GORE-TEX Koala membrane sits at the heart of the build, delivering genuine waterproofing without sacrificing breathability on sustained climbs. A fleece liner and insulated insole keep your feet warm when temperatures drop, and a ripstop woven upper with thermo-laminated PU coverage at the toe, heel, and sides adds the kind of durability you need when winter riding gets rough. The X2 outsole strikes a balance that makes these a true all-day shoe: stiff enough to transfer power cleanly on the pedals, yet comfortable enough to hike out when the trail demands it. Features GORE-TEX Koala membrane (PFAS-free) fully waterproof and breathable construction that keeps feet dry in rain, slush, and mud without trapping heat Fleece liner and insulated insole keep warmth close to the foot in sub-zero conditions without adding uncomfortable bulk Ripstop woven upper with thermo-laminated PU reinforcement abrasion and tear resistance at the toecap, heel, and sides for protection against rocks and trail debris BOA L6 dial with zippered neoprene ankle cuff micro-adjustable fit and a secure seal against water, mud, and trail grit - operable with gloves on X2 outsole with Vibram XS Trek EVO rubber nylon shank and EVA midsole at stiffness index 3 balance pedaling efficiency with walkability on hike-a-bike terrain2-bolt cleat compatibility with extended cleat track wide fore-aft adjustment range fits SPD, Crank Brothers, and other standard 2-bolt systems Sizing EUUS364 1/4375 1/437. 55 1/238638. 56 1/4396 3/439. 57407 1/240. 58418 1/441. 58 3/442942. 5942. 59 1/2439 3/443. 510 1/443. 510 1/44410 3/444. 5114511 1/245. 5114612 1/446. 512 1/24713 | Fi'zi:k | Nanuq 2 Gtx Shoes Men's | Size 39 In Black Grey | Nylon