You save 4,597 (29%)
29% off the seller list price
Doorstep delivery by 21 Oct - 23 Oct from USA
Run Further, Feel Better
OS1st AC4 Active Comfort Socks in Large Royal Blue are engineered for peak performance and lasting comfort, especially for Indian runners. Imported from authorized US retailers, these socks feature advanced blister protection, contoured padding, and a seamless toe construction. The thin, breathable fabric, infused with bamboo-derived polyester, nylon, and Lycra, ensures feet stay dry and cool even in humid Indian weather. Light compression aids circulation, while the anatomical design and double tab prevent slippage, making them ideal for both intense runs and everyday activities.
The unique 360-degree blister protection system and soft fibers revive sore feet, making them suitable for hyper-sensitive skin. The moisture-wicking properties are crucial for maintaining foot health during long runs or strenuous workouts in India's climate. Reviewers highlight the socks' ability to keep feet dry and prevent blisters, even during extended periods of activity.
Compared to typical Indian athletic socks, OS1st AC4 offers specialized blister prevention and targeted compression. All customs duties and GST are included in the price, with delivery via ExpressBox. Enjoy comfort and support that lasts, all at a competitive value.
Engineered for Peak Performance & Comfort
OS1st AC4 socks are crafted with advanced materials and design for superior foot care. The blend of bamboo-derived polyester, nylon, and Lycra offers exceptional moisture-wicking and breathability, keeping feet dry and cool. Contoured padding and a seamless toe provide lasting comfort, while the anatomical fit and double tab prevent slippage. Light compression enhances circulation, making these socks ideal for runners and active individuals seeking reliable support and blister prevention.
Who It's For & Who Should Skip
These socks are perfect for runners, cyclists, and anyone with an active lifestyle who experiences foot fatigue, soreness, or blisters. They are ideal for humid Indian climates due to their breathability and moisture-wicking properties. Individuals with hyper-sensitive feet will appreciate the soft fibers and seamless construction. Skip if you require heavy-duty thermal insulation for extreme cold weather; these are designed for active comfort in moderate to warm conditions.
Typical situations where OS1st AC4 Active Comfort Socks with Blister Protection Double-tab & Seamless Toe helps — illustrative scenarios, not customer reviews.
Running 10km daily in Mumbai's humid monsoon season, experiencing blisters and discomfort.
OS1st AC4 socks' moisture-wicking and breathable bamboo blend keep feet dry, preventing blisters. The light compression and anatomical fit provide support, making daily runs comfortable despite the challenging climate.
Long commutes and standing all day in Delhi, leading to foot fatigue and achiness.
The contoured padding and light compression in OS1st AC4 socks offer targeted support and improved circulation, reviving tired feet and reducing soreness for sustained comfort throughout the day.
| Care Instructions | Machine wash cold, gentle cycle. Tumble dry low. Do not bleach or use fabric softener. |
| Serving Size | 1 Pair |
| Cost per use | 1 pair at ₹11,126 — ₹11,126 per pair |
| Shelf life after opening | 12 months (typical for performance apparel) |
| Reapplication math | Designed for single-use per wash cycle; lasts through a full day of activity. |
| Contraindications | Not designed for extreme cold weather insulation; avoid bleach/fabric softener for longevity. |
| Allergens / common irritants | Contains Spandex (Lycra) and Nylon; check material composition if sensitive. |
| Feature | OS1st AC4 Active | Others |
|---|---|---|
| Blister Protection | 360° protection, contoured padding, soft fibers for sensitive feet. | Varies by brand; typically basic cushioning, higher friction risk. |
| Moisture Management | Bamboo-derived polyester blend wicks moisture, keeps feet dry & cool. | Standard cotton blends absorb sweat, leading to dampness and blisters. |
| Fit & Anti-Slip | Anatomical design, double tab prevents slippage. | Standard cuff, prone to slipping down into shoes during activity. |
| Compression & Support | Light compression improves circulation, provides support without binding. | Often lacks targeted compression, may feel loose or overly tight. |
| Cost per pair (approx.) | ₹11,126 per pair | ₹150 - ₹400 per pair for comparable technical socks. |
| SKU | pvq1800 |
| GTIN | 0810017616039 |
| Brand | OS1st |
| Model Name | Thin Air Running Socks |
| Part Number | 41OS1AC4BLUL |
| Color | Royal Blue |
| Pattern | Solid |
| Height | No Show |
| Fit Type | Regular |
| Toe Style | Reinforced Toe |
| Department | Unisex Adult / Men's |
| Size | Large (US Men's 9-12) |
| Item Weight | 51 g (1.8 oz) |
| Package Quantity | 1 Pair |
| Country of Origin | Imported from authorized US retailers and authorized brand partners |
About OS1st
OS1st specializes in performance athletic socks, focusing on targeted compression and foot protection for runners and active individuals.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
OS1st AC4 Active Comfort Socks with Blister Protection Double-tab & Seamless Toe, Large Royal Blue | 51g (1.8oz) Lightweight Breathable
11,126
This item
OS1st AC4 Active Comfort Socks with Blister Protection Double-tab & Seamless Toe, Large Royal Blue | 51g (1.8oz) Lightweight Breathable
11,126
Total price:
18,106
You save 7,871 (30%) Extra3 items selected
3 items
18,106You save 7,871 (30%) Extra
| Attributes | Current |  |  |  |  | ||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 11,126 15,723 | 3,476 5,237 | 3,504 5,017 | 3,226 3,689 | 5,698 6,868 | 1,562 3,928 | 2,656 3,241 |
| Rating | 4.50(395) | 4.50(395) | 3.90(422) | 4.60(5,751) | 4.40(4,007) | 4.40(57K+) | 3.20(3) |
| Brand Name | OS1st | OS1st | Niziruoup | Tommy Hilfiger | Morphsuits | Weiman | I Jewels |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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