Right material choices reduce carbon footprint

We have calculated product-specific carbon footprints. We selected four safety footwear models for comparison; they differ from each other especially in terms of the materials used. Raw materials explain the biggest differences in the carbon footprint of these products: leather footwear has a considerably larger carbon footprint than footwear made entirely of synthetic materials. Due to its durability, leather is, however, the best available material for safety footwear since leather footwear is thought to last approximately twice as long as footwear made of synthetic materials. Leather is, however, a significant factor in the climate impact of our products, which is why we are constantly researching alternative materials.

It makes sense to spread a product’s climate impact over its useful life as this gives the best result not only for the users but also for the environment

Calculation of the products' carbon footprint

Total emissions per pair of shoes, unit kg CO2 e/pair*

*Sievi’s carbon footprint has been calculated in accordance with the global GHG (Greenhouse Gas) protocol















A regular sneaker emissions about 14 kg of CO2, Source: https://runrepeat.com/eco-sneakers-research

Beef burger 3.4 kg CO2, Source: https://www.hesburger.fi/vastuullisuus/hiilijalanjalki-hyvitetty/hiilijalanjalki-hyvitetty--tuotteet

Mobile phone 58.5 kg CO2 eq./pc. The coefficient is based on the estimated emission coefficient of Apple smartphones. Source: Anthesis Group 2014

Laptop 155.6 kg CO2 eq./pc. The assumed weight of the device is 3.2 kg. Source: Ecoinvent 3.1.2014

Sievi’s total emissions in 2022: 34,153.20 t CO2e