# Work thermal undershirt HOGERT OSTE blue size 3XL–4XL, insulated long-sleeve base layer

**URL:** https://aio.lv/en/product--hogert-ht5k390-3xl-4xl--11680657
**Data updated:** 2026-02-16 07:10 (EET)
**Category:** Workwear
**Manufacturer:** HOGERT
**Manufacturer code:** HT5K390-3XL-4XL
**EAN:** 5902801288272
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hogert-ht5k390-3xl-4xl--11680657

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 03.08.2026 | 1.79 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

Thermal work undershirt HOGERT OSTE in blue, size 3XL–4XL. Long-sleeve insulated base layer designed to retain body heat during cold conditions. Suitable for outdoor work, construction, and active tasks that require thermal protection and freedom of movement. Comfortable fit for larger sizes, pairs with workwear and safety clothing to improve comfort and warmth.

## Long description

The Work thermal undershirt HOGERT OSTE blue size 3XL–4XL is a long-sleeve insulated base layer designed to retain body heat during cold conditions while allowing freedom of movement. Constructed for use under outer workwear, this thermal undershirt provides a close but comfortable fit for larger body sizes and is suitable for tasks that demand both thermal protection and dexterity. The blue color and simple design make it compatible with a variety of work uniforms and safety garments.
Advantages
This insulated long-sleeve base layer offers improved warmth retention through a combination of thermal fabric and fitted construction that reduces heat loss. The ergonomic cut is designed to accommodate larger sizes without restricting movement, and flat seams reduce chafing when worn under jackets or protective gear. The material balances insulation with breathability to help manage moisture during physical activity.
Suitable for
Outdoor manual labor in cold weather
Construction sites and building work
Maintenance, logistics, and delivery tasks
Layering under protective or high-visibility workwear
Cold-storage or refrigerated environments where thermal base layers are needed
Key specifications
Type: insulated long-sleeve base layer for work
Fit: designed for 3XL–4XL sizes with an ergonomic cut
Material properties: thermal insulation with moisture-management and breathable characteristics
Sleeve: long sleeves for full arm coverage
Color: blue
Intended use: worn as first layer under outer clothing and protective garments
How to use
Put on the thermal undershirt as the first layer directly against the skin or over a light inner garment. Ensure the sleeves and torso fit snugly but comfortably to maximize thermal performance and moisture transfer. Wear additional insulated layers or outer workwear as needed for the environmental conditions. Follow garment care instructions on the label for washing and drying to preserve insulation and fabric properties.
Usage recommendations
For optimal comfort and performance, select the correct size corresponding to your measurements in the 3XL–4XL range, pair the undershirt with breathable outer layers, and avoid over-drying on high heat to maintain fabric integrity and insulation.

## FAQ

### How much does the HOGERT OSTE thermal undershirt blue 3XL–4XL cost, and is it available for purchase?

The price is 17.99 € (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 Wednesday 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: Cash payment, 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 HOGERT 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 HOGERT 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/11680657/67013246_large.webp