# Protective Bicycle Helmet 100% Kask Aircraft Composite navy blue size S

**URL:** https://aio.lv/en/product--100-knig-sto-80004-015-10--11832471
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Protective Helmets
**Manufacturer:** 100 КНИГ
**Manufacturer code:** STO-80004-015-10
**EAN:** 841269171014
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 280.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 231.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--100-knig-sto-80004-015-10--11832471

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Protective bicycle helmet 100% Kask Aircraft Composite in navy blue, size S. A lightweight protective helmet designed for cycling with a composite shell construction. Provides head protection for everyday urban riding and recreational cycling. Features standard ventilation openings and adjustable retention for a secure fit. Suitable for riders seeking a compact safety helmet.

## Long description

Protective Bicycle Helmet 100% Kask Aircraft Composite navy blue size S is a compact, lightweight cycling helmet designed for everyday urban riding and recreational cycling. The composite shell construction combines impact-resistant materials with a streamlined shape to deliver protection while keeping weight low. Standard ventilation openings provide airflow for comfort during short commutes and leisure rides, and the adjustable retention system allows fine-tuning for a secure fit in size S.
Advantages
The composite shell offers a balance of strength and lightness, reducing rider fatigue while maintaining impact protection. Integrated ventilation channels help regulate temperature and improve comfort during moderate exertion. The adjustable retention and fit system enable stable positioning of the helmet on different head shapes within the S size range. The helmet's compact profile is suitable for riders who prefer a low-profile look without sacrificing essential safety features.
Suitable for
 Urban commuting and city cycling
 Recreational and leisure rides
 Short-distance bike trips and errands
 Riders seeking a compact, lightweight safety helmet in size S
Key specifications
 Construction: composite shell combining impact-resistant materials
 Color: navy blue
 Size: S (small) with adjustable retention system
 Ventilation: standard ventilation openings with internal airflow channels
 Weight: lightweight design for reduced fatigue (manufacturer-stated light construction)
 Use: designed for cycling — urban and recreational riding
How to use
Place the helmet on the head so that it sits level and covers the forehead without tilting backward. Adjust the retention system so the helmet fits snugly but comfortably; the helmet should not move excessively when you shake your head. Fasten and adjust the chin strap so it sits under the chin with enough tension to keep the helmet secure while allowing natural jaw movement. Regularly inspect the shell and straps for damage and replace the helmet after any significant impact or according to the manufacturer's safety guidance.
Usage recommendations
Use the helmet for everyday urban and recreational cycling. For maximum protection, replace the helmet after a significant impact or if you notice visible cracks or deformations. Clean the helmet with mild soap and water and avoid exposing it to high temperatures or strong chemicals. Store in a cool, dry place away from direct sunlight.

## FAQ

### How much does the Bicycle Helmet 100% Kask Aircraft Composite S cost, and is it available for purchase?

The price is 280.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Bicycle Helmet 100% Kask Aircraft Composite S be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 100 КНИГ products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 100 КНИГ service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11832471/67233034_large.webp