# Hydro Flask water bottle 21oz (621 ml) with Standard Flex Cap — Birch

**URL:** https://aio.lv/en/product--hydro-flask-s21csx035--11906455
**Data updated:** 2026-03-10 00:46 (EET)
**Category:** Sports Bottles
**Manufacturer:** Hydro Flask
**Manufacturer code:** S21CSX035
**EAN:** 840394202044
**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-s21csx035--11906455

## 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 (621 ml) insulated water bottle with Standard Flex Cap in Birch color. Double‑wall vacuum insulation keeps drinks hot or cold for hours; durable stainless steel construction and powder coat finish resist dents and sweat. Leak‑resistant Flex Cap and wide mouth allow easy filling, pouring and use with ice. Suitable for daily hydration, travel and outdoor activities.

## Long description

Hydro Flask water bottle 21oz (621 ml) with Standard Flex Cap — Birch is a double‑wall insulated stainless steel bottle designed to maintain beverage temperature for extended periods. The 21oz (621 ml) capacity suits daily hydration needs while the powder coat finish provides a non-slip surface that resists condensation and minor wear. The Standard Flex Cap is leak‑resistant and the wide mouth accommodates ice, easy filling and pouring.
Advantages
The double‑wall vacuum insulation reliably preserves hot or cold temperatures for hours without transferring heat to the exterior. Made from durable stainless steel, the bottle resists dents and is built for repeated use. The powder coat finish reduces sweating and improves grip, while the Standard Flex Cap offers a secure seal and straightforward one‑hand operation. The wide mouth simplifies cleaning and allows adding ice cubes or beverage mixers.
Suitable for
 Everyday hydration at home, office, or school
 Commuting and travel by car, train, or plane
 Outdoor activities such as hiking, cycling, and camping
 Gym sessions and sports practice
Key specifications
 Capacity: 21oz (621 ml)
 Material: Double‑wall vacuum insulated stainless steel
 Finish: Powder coat for improved grip and reduced condensation
 Cap type: Leak‑resistant Standard Flex Cap
 Mouth: Wide mouth for ice and easy filling
 Color: Birch
How to use
Fill the bottle through the wide mouth with cold or hot beverages, leaving some space at the top to avoid spillage when closing. Secure the Standard Flex Cap by pressing it onto the mouth until it seals; check the cap after filling to ensure the leak‑resistant closure. For best thermal performance, preheat or pre‑cool the bottle by adding hot or cold water for a few minutes and discarding before filling with the intended drink.
Usage recommendations
Hand wash the bottle and cap with warm soapy water; the powder coat exterior benefits from gentle cleaning to preserve texture. Avoid freezing the bottle or using it for carbonated drinks under pressure. Do not use bleach or chlorine‑based cleaners on the finish. Periodically inspect the cap seal for wear and replace if necessary to maintain leak resistance.

## FAQ

### How much does the Hydro Flask 21oz water bottle — Standard Flex Cap 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 — 13 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/11906455/67337034_large.webp