What does CI mean on safety boots?

CI stands for cold insulation. It is an extra marking under EN ISO 20345 for boots whose sole has passed a cold insulation test, so less heat is lost to cold ground.

Are winter safety boots waterproof?

Not always. A lining keeps you warm but not dry. Look for S3, S5 or a WR marking as well. Most of the lined boots on this page are also waterproof, and wellingtons are waterproof by design.

What is the warmest safety boot for a cold store?

For cold stores and freezers, thermal polyurethane wellingtons are rated lowest: Dunlop Purofort Thermo+ and Bekina Thermolite to -50°C, and Bekina Steplite X Thermoprotec to -40°C.

Can I order winter boots for a whole team?

Yes. We size and pack per person, and trade accounts get volume pricing. Request a quote with the sizes you need.

Winter Safety Boots

Thermal and insulated safety boots for frosty sites, yards and cold stores: Thinsulate-lined boots, fur-lined riggers, boots with a CI cold-insulated sole, and thermal safety wellingtons for wet, freezing ground.

Every pair here has a toe cap and meets EN ISO 20345. Not sure which rating you need? See S1P vs S3 and the other markings.

16 products · trade pricing · free UK delivery over £100 ex VAT

PPE

Beeswift S3 Thinsulate Boot

£58.38ex. VAT

PPE

Beeswift Trencher Boot

£78.72ex. VAT

PPE

Beeswift Trencher Plus Side Zip Boot

£104.57ex. VAT

PPE

Beeswift Waterproof Side Zip Boot

£96.07ex. VAT

PPE

JCB Workwear Denstone Rigger Boot

£94.98ex. VAT

PPE

Perf PB42LC Lined Rigger Boot

£51.17ex. VAT

PPE

Beeswift Rigger Boot Lined

£35.42ex. VAT

PPE

Lemaitre Thor S3 Waterproof U TURN Safety Boot

£176.32ex. VAT

PPE

Lemaitre Tyr S3 Waterproof Vibram Combat Safety Boot

£191.10ex. VAT

PPE

Lemaitre Njord S3 Safety Boot

£116.13ex. VAT

PPE

Dunlop Purofort Thermo+ Full Safety Wellingtons

£118.47ex. VAT

PPE

Dunlop Purofort Thermo+ Full Safety Wellingtons

£118.25ex. VAT

PPE

Dunlop Purofort Fieldpro Thermo+ Full Safety Wellington

£118.72ex. VAT

PPE

Bekina Thermolite Safety Wellingtons S5

£98.87ex. VAT

PPE

Bekina Steplite X Thermoprotec Full Safety Non Metalic Wellingtons S5

£81.67ex. VAT

PPE

Purofort Terrapro Full Safety Wellington Boots

£80.88ex. VAT

What to look for

Look for the CI marking

CI means the sole has passed the cold insulation test in EN ISO 20345, so your feet lose less heat through the ground. It matters most where you stand still on frozen ground or concrete.

Lined boots for everyday cold

A Thinsulate or fur lining keeps feet warm on most UK winter sites. Pair it with a waterproof (S3 or WR) boot so wet ground doesn't undo the warmth.

Thermal wellingtons for wet and freezing

Polyurethane safety wellingtons such as Dunlop Purofort Thermo+ and Bekina Thermolite are rated down to -50°C, for farms, food plants and cold stores where it is both wet and very cold.

Socks count too

A thermal work sock adds warmth without a bigger boot. Try boots on with the socks you will wear on site.

Frequently asked questions

What does CI mean on safety boots?: CI stands for cold insulation. It is an extra marking under EN ISO 20345 for boots whose sole has passed a cold insulation test, so less heat is lost to cold ground.
Are winter safety boots waterproof?: Not always. A lining keeps you warm but not dry. Look for S3, S5 or a WR marking as well. Most of the lined boots on this page are also waterproof, and wellingtons are waterproof by design.
What is the warmest safety boot for a cold store?: For cold stores and freezers, thermal polyurethane wellingtons are rated lowest: Dunlop Purofort Thermo+ and Bekina Thermolite to -50°C, and Bekina Steplite X Thermoprotec to -40°C.
Can I order winter boots for a whole team?: Yes. We size and pack per person, and trade accounts get volume pricing. Request a quote with the sizes you need.

Related ranges

Kitting out a team? We size and pack per person and quote for bulk orders. Request a quote.