# Base Layer Thermal Shirt lahti pro ThermoActive S/M — moisture-wicking, quick-dry

**URL:** https://aio.lv/en/product--lahti-pro-5053749--10781710
**Data updated:** 2026-03-12 10:08 (EET)
**Category:** Workwear
**Manufacturer:** lahti pro
**Manufacturer code:** 5053749
**EAN:** 5903755053749
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lahti-pro-5053749--10781710

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

lahti pro ThermoActive Thermal Shirt is a base layer shirt in size S/M designed for moisture-wicking and quick-dry performance. Intended as an underlayer for work or outdoor activities, it provides moisture management and faster drying to help regulate body temperature during physical tasks. Suitable for layering under workwear or sports clothing.

## Long description

ThermoActive base-layer shirt in size S/M made from a blend of 72% polyamide, 21% polyester and 7% elastane. The cellular knit structure provides effective ventilation and breathability while a special weave wicks moisture away from high-sweat zones to the garment surface for quicker drying. Cuffs fit close to the body to retain warmth and prevent cold drafts, and a higher-density knit in key areas enhances thermal protection. Certified CE Cat. I according to EN ISO 13688.
Advantages
The ThermoActive shirt combines a ventilating cellular fabric with a moisture-wicking weave to manage sweat and improve drying time. Stretch content ensures a close, comfortable fit while cuffs and targeted high-density knitting increase thermal insulation and protect against cold. The product meets CE Category I safety standards (EN ISO 13688).
Suitable for
 Base layer for outdoor work in cool conditions
 Underworkwear for physical tasks with elevated perspiration
 Layering under jackets during seasonal transitions
Key specifications
 Brand: lahti pro
 Model / MPN: 5053749
 EAN: 5903755053749
 Size: S/M
 Material: 72% polyamide, 21% polyester, 7% elastane
 Certification: CE Cat. I, EN ISO 13688
How to use
Wear the ThermoActive shirt as a first (base) layer directly against the skin to optimize moisture transport and thermal regulation. Pair it with mid and outer layers according to ambient temperature and activity level. If the garment becomes wet, allow it to dry fully before repeated use to restore thermal performance.
Usage recommendations
Machine wash according to care label instructions; avoid high-temperature drying and chlorine-based bleaches to preserve fabric elasticity and moisture-wicking properties.

## FAQ

### How much does the lahti pro ThermoActive Thermal Shirt S/M cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 02.07.2026 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 lahti pro 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 lahti pro 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/10781710/60031396_large.webp