FREQUENTLY ASKED QUESTIONS EVERYTHING YOU NEED TO KNOW

NANRENWA socks feature 200-needle knitting technology (industry standard is 96-120 needles), Egyptian Giza 45 cotton with 36mm+ fiber length, silver-ion antimicrobial technology (99.9% bacteria inhibition), hand-linked toe construction for seamless comfort, and reinforced heel and toe for 3x longer wear. Every pair undergoes 14-point quality inspection including laser measurement, spectrophotometer color testing, and 5,000-cycle abrasion testing.

200-needle knitting is an advanced manufacturing process using Italian Lonati machines that deploy 200 needles to knit each sock. The industry standard for premium socks is 96-120 needles. This higher needle count creates a finer, denser, smoother fabric with 50-100% more stitches per inch. Results: smoother texture, better durability, richer color reproduction, and reduced pilling over time.

Our socks use premium materials: Egyptian Giza 45 cotton (extra-long staple, 36-40mm fiber length — only 0.4% of global cotton qualifies), bamboo fiber (naturally antibacterial, moisture-wicking, biodegradable), Merino wool (for winter collections, temperature-regulating), silver-ion antimicrobial yarn (permanently embedded, not coated), and high-tenacity nylon (reinforcement at heels and toes). All materials are OEKO-TEX Standard 100 certified.

Classic Cotton Crew: Everyday premium Giza cotton socks, mid-calf length, all-season comfort. Premium Merino Wool: Temperature-regulating, naturally odor-resistant, ideal for cold weather. Performance Athletic: Moisture-wicking, cushioned sole, arch support, breathable mesh panels. Ultra-Comfort Dress: Ultra-thin 200-needle fine knit, invisible under dress shoes, reinforced heel/toe.

Four sizes available: S (US 6-8 / EU 39-41), M (US 8-10 / EU 41-43), L (US 10-12 / EU 43-45), XL (US 12-14 / EU 45-47). If you're between sizes, we recommend sizing up for a more comfortable fit. Most styles are available in all four sizes.

No problem. Our 366-day return policy covers fit issues. Exchange for a different size with free return shipping. If you're unsure about sizing, contact us via WeChat (373641059) for personalized sizing advice before ordering.

Yes. Our 200-needle knitting technology creates a fabric with excellent natural stretch and recovery. The socks comfortably accommodate wide feet without constricting. For maximum comfort, choose your size based on shoe size — the knit will naturally adapt to your foot shape.

Three convenient methods: WeChat (add 373641059 — fastest, 5-15 min response), Website Order Form (fill out on the order page), or Email (formal inquiries, 4-8 hour response). WeChat is highly recommended for personalized service, instant support, and fastest order processing.

We accept: WeChat Pay (instant, recommended), PayPal (with buyer protection), Credit/Debit Cards (Visa, MasterCard, American Express), and Apple Pay. All transactions are encrypted and processed through secure payment gateways. Your financial information is never stored on our servers.

Yes! NEW20: 20% off your first order. FRIEND15: 15% off for you and a friend (referral). AUTO25: Up to 25% off with subscription plans. BUNDLE33: 33% off 3-packs. Check our Order page for current active promotions.

Yes! We ship to 47 countries including: USA, Canada, UK, Australia, New Zealand, all EU countries, Japan, South Korea, Singapore, Hong Kong, Taiwan, UAE, and more. Free shipping on all subscription orders. Standard international rates apply for one-time purchases.

Orders ship within 24-48 hours of payment confirmation. Domestic delivery (within destination country): 3-7 business days. International delivery: 7-14 business days. Express shipping options available for faster delivery (3-5 business days). Tracking numbers provided for all orders.

Industry-leading guarantee: return any socks within 366 days of purchase — even if they've been worn. Full refund or exchange available. Free return shipping (we provide the label). No restocking fees. Refund processed within 48 hours of receiving the return. No questions asked — because we stand behind every pair with complete confidence.

Simple process: (1) Contact us via WeChat (373641059), email, or your account. (2) Tell us the reason — even "I just don't like them" is fine. (3) We email you a free return label immediately. (4) Pack the socks in any box. (5) Drop off at any shipping location. (6) Refund or exchange processed within 48 hours.

For longest life: Machine wash cold (30°C / 86°F), gentle cycle. Wash inside out to protect the knit surface. Use mild detergent — no bleach or fabric softener (softeners coat fibers and reduce moisture-wicking). Tumble dry low heat or air dry (air drying extends life 30-50%). Do not iron. Do not dry clean. Following these instructions preserves the 200-needle knit structure and silver-ion antimicrobial properties for years.

Absolutely. All NANRENWA socks are OEKO-TEX Standard 100 certified, meaning they are tested and verified free from harmful chemicals and substances. The Giza 45 cotton is naturally hypoallergenic. The silver-ion antimicrobial treatment is embedded in the fiber — not a surface coating — so it won't irritate, leach, or wash away.