# Water bottle Hydro Flask 21oz (620 ml) Standard Flex Cap Surf — insulated stainless steel

**URL:** https://aio.lv/en/product--hydro-flask-s21csx484--11906568
**Data updated:** 2026-03-10 00:46 (EET)
**Category:** Sports Bottles
**Manufacturer:** Hydro Flask
**Manufacturer code:** S21CSX484
**EAN:** 810096858955
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 43.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 36.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hydro-flask-s21csx484--11906568

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Hydro Flask 21oz Standard Flex Cap Surf is an insulated stainless steel water bottle with a 21-ounce (approx. 620 ml) capacity. It features the Standard Flex cap for easy carrying and a durable exterior suitable for outdoor activities, sports and daily hydration. Designed to keep beverages at temperature and resist impacts for on-the-go use.

## Long description

The Hydro Flask 21oz (620 ml) Standard Flex Cap Surf is an insulated stainless steel water bottle designed to maintain beverage temperature for hours while withstanding everyday outdoor use. Constructed with double-wall vacuum insulation and a durable stainless steel body, this bottle provides reliable hot and cold retention in a compact, easily portable size. The Standard Flex cap features a flexible loop for carrying and attachment to bags or carabiners, and the exterior finish offers impact resistance and a secure grip suited to active use.
Advantages
This insulated bottle preserves cold and hot beverages by minimizing heat transfer through double-wall vacuum insulation and a stainless steel interior. The Standard Flex cap simplifies transport with a soft, integrated loop that is comfortable to hold and compatible with common clips. The 21oz (620 ml) capacity balances portability with sufficient volume for daily hydration, sports, and short outdoor excursions. The durable exterior resists dents and scratches, and the bottle is designed for easy cleaning of the wide mouth while maintaining leak resistance during normal use.
Suitable for
 Daily hydration at work, school, or commuting
 Outdoor activities such as hiking, biking, and beach trips
 Sports, gym sessions, and training
 Travel and short excursions where compact insulated storage is needed
Key specifications
 Capacity: 21 ounces (approximately 620 ml)
 Material: Double-wall vacuum insulated stainless steel
 Cap type: Standard Flex cap with integrated flexible loop
 Mouth opening: Wide mouth for easy filling and cleaning
 Finish: Durable exterior coating designed for impact resistance and grip
 Intended temperature performance: Keeps beverages hot or cold for extended periods (insulated design)
How to use
Fill the bottle through the wide mouth with your chosen beverage, then secure the Standard Flex cap by screwing it on until it is snug to maintain insulation and reduce the chance of spills. Use the flexible loop to carry the bottle by hand or attach it to a bag with a carabiner. For hot liquids, take care when opening the cap to avoid steam; for cold liquids, condensation on the exterior is normal depending on ambient conditions. Hand washing is recommended for the cap and bottle to preserve the exterior finish and seal integrity.
Usage recommendations
To maintain performance and longevity, rinse the bottle after each use and periodically deep clean the interior with warm water and mild detergent. Avoid placing the bottle in a dishwasher or using abrasive cleaners on the exterior coating. Do not use the bottle for long-term storage of perishable liquids. Inspect the cap and seal regularly for wear and replace if necessary to preserve leak resistance.

## FAQ

### How much does the Hydro Flask 21oz Standard Flex Cap Surf bottle cost, and is it available for purchase?

The price is 43.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 06.07.2026 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. All transactions are 100% secure and encrypted.

### 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 Hydro Flask 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 Hydro Flask 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/11906568/67337247_large.webp