Factor 1 Long Sleeve Base Layer Turtle Neck Top

Factor 1 Long Sleeve Base Layer Turtle Neck Tops ensures you stay warm, dry, and comfortable during cold-weather activities.

Crafted from stretchy tubular 100% polyamide ribbed fabric with a hydrophilic treatment, these unisex tops excel in moisture management, keeping you dry and comfortable during activities. The generous body length ensures the fabric stays securely tucked into leggings, minimising lower back exposure. With set-in sleeves, they deliver a snug yet comfortable fit around the armpits and shoulders, optimising both insulation and moisture-wicking performance. Double-thickness cuffs provide extra wrist protection and help retain warmth, whilst the 5cm high double thickness collar helps insulate the neck.

These base layers are ideal for a variety of activities, including skiing, hiking, and camping. They can also be paired with Sub Zero’s Factor 2 mid-layers for enhanced warmth in harsher conditions.

Please note: These are end-of-line items. Some tops may have slight color variations from being folded or feature different versions of our logo. Despite these minor cosmetic differences, the performance and quality of these garments remain uncompromised. To reflect this, we’ve significantly reduced the price.

Scroll down the page for further product details, technical information, sizing, shipping and any washing instructions.

Color
Size

£24.99

Only 4 left in stock.
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  • Thermal Efficiency: Advanced polyamide Factor 1 fabric construction retains heat whilst wicking away moisture.
  • Lightweight & Breathable: Ensures unrestricted movement and optimal temperature regulation.
  • High Wicking: hydrophilic treatment within the yarn actively transports moisture away from the skin.
  • Turtle Neck Design: 5cm high double thickness collar provides additional neck coverage to seal in warmth.
  • Set-In Sleeves: Maximises wicking and provides a superior fit.
  • Generous Length: Helps prevent lower back exposure during activities.
  • Unisex Design: Tailored for both men and women for versatile wear.
  • Flatlock Seams: Minimises chafing and enhances comfort during extended use.
  • Easy Care: Machine washable and quick drying.
  • Brand: Sub Zero
  • SKU: SZF1TN
  • TOG: 0.42
  • Fabric: 100% Polyamide
  • Average weight: 160g / 5.6oz
  • Fit: Snug
  • Layer: First - next to the skin
  • Size availability: XSmall-XXLarge
  • Colour: Black, White
  • Fabric treatments: Hydrophilic
  • Washing instructions: 40°C wash with mild detergent, do not tumble dry, iron on low setting
  • Made in: Great Britain

We ship worldwide using Royal Mail, UPS & DPD. Please use the tables below as a guide for working out the shipping prices to your address. Please be aware that the product weights stated in the listings are for the products themselves, not the final weight when packaging is included. Our system will automatically calculate this and provide a total order weight during checkout. 

If you are unable to complete the checkout process when coming to choose a shipping option, then your order may be over the shipping weight limit for your address. Please call us on +44 (0)116 2402634 or email us at sales@subzero.co.uk and we can give you a custom shipping quote. 

For more detailed information regarding our shipping process please visit our comprehensive Shipping Page

UNITED KINGDOM

*All UK orders over £50 are shipped free of charge

Order Weight Royal Mail Tracked 24 Royal Mail Tracked 48 Royal Mail Guaranteed Before 1pm DPD Next Day
0.5kg £5.49 £3.99 £9.99 £8.99
1.0kg £6.49 £4.99 £11.99 £8.99
1.5kg £6.49 £4.99 £13.99 £8.99
2.0kg £6.49 £4.99 £13.99 £8.99
10.0kg N/A N/A N/A £8.99

 

USA & CANADA

*All USA & Canada orders over £200 are shipped free of charge

Order Weight DPD 7-14 Days Royal Mail International Tracked
0.25kg £16.99 £9.99
0.5kg £16.99 14.99
0.75kg £16.99 £16.99
1.0kg £16.99 £19.99
1.5kg £16.99 £22.99
2.0kg £16.99 £24.99
4.0kg £24.99 N/A

 

EUROPE

Order Weight DPD 7-14 Days Royal Mail International Tracked UPS 7-14 Days
0.25kg £11.99 £9.99 £49.99
0.5kg £11.99 £12.99 £49.99
0.75kg £11.99 £14.99 £49.99
1.0kg £11.99 £17.99 £49.99
1.5kg £11.99 £19.99 £49.99
2.0kg £11.99 £21.99 £49.99
4.0kg £19.99 N/A £49.99

 

 REST OF WORLD

Order Weight Royal Mail International Tracked
0.25kg £9.99
0.5kg £14.99
0.75kg £16.99
1.0kg £19.99
1.5kg £22.99
2.0kg £24.99
4.0kg N/A

 

If you are unhappy with your purchase, please return it to us within 180 days of receipt. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.

For more information regarding our returns policy please visit our Returns Page

Washing instructions for Sub Zero base layers are printed on a white silk tag stitched to the back neck and can also be found knitted in to the waist band. Please follow these instructions carefully as failure to comply with them will make your guarantee void. If you have removed the tag or are unsure of the washing symbol meaning, the full washing instructions can be found below.

  • Machine wash or hand wash in water not exceeding 40°C or 105°F
  • You can use a mild washing detergent but ideally you want to use a base layer specific washing treatment 
  • Wash dark colours separately, do not bleach, do not use fabric conditioners
  • These base layers can be spun dry in a washing machine
  • Do not tumble dry. These base layers will quickly dry on a line or airer as they retain very little water once spun/rung out. 
  • Do not dry clean
  • Regular ironing may be performed at a low setting (110°C, 230°F) only, but we advise against it.

 

GENERAL WASHING TIPS
When you go to wash any garment with a zip, ensure it is done up fully otherwise the exposed teeth may cause harm in the wash cycle. The same can be said for garments containing Velcro. Your best course of action would be to wash these garments either by hand or on their own in a washing machine.

With the advancement in detergent technology, you very rarely need to wash any garments these days above 30°C. It is better to use a specific anti-bacterial wash-in treatment rather than increasing the temperature.

A lot of Sub zero products, especially the base layers and mid layers, can be ironed on a low temperature setting. We would advise against this as the heat settings on irons are not always reliable. In any case, the stretch properties of synthetics helps reduce creases in the wash and if there are any afterwards, they often drop out when worn.

Like most synthetics, Sub Zero fabrics will melt or burn if exposed to flame or direct heat. They are not flame resistant; do not use them near ANY direct source of heat or flame. This includes some of our merino wool products that contain a small percentage of synthetic yarn.

  • Thermal Efficiency: Advanced polyamide Factor 1 fabric construction retains heat whilst wicking away moisture.
  • Lightweight & Breathable: Ensures unrestricted movement and optimal temperature regulation.
  • High Wicking: hydrophilic treatment within the yarn actively transports moisture away from the skin.
  • Turtle Neck Design: 5cm high double thickness collar provides additional neck coverage to seal in warmth.
  • Set-In Sleeves: Maximises wicking and provides a superior fit.
  • Generous Length: Helps prevent lower back exposure during activities.
  • Unisex Design: Tailored for both men and women for versatile wear.
  • Flatlock Seams: Minimises chafing and enhances comfort during extended use.
  • Easy Care: Machine washable and quick drying.
  • Brand: Sub Zero
  • SKU: SZF1TN
  • TOG: 0.42
  • Fabric: 100% Polyamide
  • Average weight: 160g / 5.6oz
  • Fit: Snug
  • Layer: First - next to the skin
  • Size availability: XSmall-XXLarge
  • Colour: Black, White
  • Fabric treatments: Hydrophilic
  • Washing instructions: 40°C wash with mild detergent, do not tumble dry, iron on low setting
  • Made in: Great Britain

We ship worldwide using Royal Mail, UPS & DPD. Please use the tables below as a guide for working out the shipping prices to your address. Please be aware that the product weights stated in the listings are for the products themselves, not the final weight when packaging is included. Our system will automatically calculate this and provide a total order weight during checkout. 

If you are unable to complete the checkout process when coming to choose a shipping option, then your order may be over the shipping weight limit for your address. Please call us on +44 (0)116 2402634 or email us at sales@subzero.co.uk and we can give you a custom shipping quote. 

For more detailed information regarding our shipping process please visit our comprehensive Shipping Page

UNITED KINGDOM

*All UK orders over £50 are shipped free of charge

Order Weight Royal Mail Tracked 24 Royal Mail Tracked 48 Royal Mail Guaranteed Before 1pm DPD Next Day
0.5kg £5.49 £3.99 £9.99 £8.99
1.0kg £6.49 £4.99 £11.99 £8.99
1.5kg £6.49 £4.99 £13.99 £8.99
2.0kg £6.49 £4.99 £13.99 £8.99
10.0kg N/A N/A N/A £8.99

 

USA & CANADA

*All USA & Canada orders over £200 are shipped free of charge

Order Weight DPD 7-14 Days Royal Mail International Tracked
0.25kg £16.99 £9.99
0.5kg £16.99 14.99
0.75kg £16.99 £16.99
1.0kg £16.99 £19.99
1.5kg £16.99 £22.99
2.0kg £16.99 £24.99
4.0kg £24.99 N/A

 

EUROPE

Order Weight DPD 7-14 Days Royal Mail International Tracked UPS 7-14 Days
0.25kg £11.99 £9.99 £49.99
0.5kg £11.99 £12.99 £49.99
0.75kg £11.99 £14.99 £49.99
1.0kg £11.99 £17.99 £49.99
1.5kg £11.99 £19.99 £49.99
2.0kg £11.99 £21.99 £49.99
4.0kg £19.99 N/A £49.99

 

 REST OF WORLD

Order Weight Royal Mail International Tracked
0.25kg £9.99
0.5kg £14.99
0.75kg £16.99
1.0kg £19.99
1.5kg £22.99
2.0kg £24.99
4.0kg N/A

 

If you are unhappy with your purchase, please return it to us within 180 days of receipt. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.

For more information regarding our returns policy please visit our Returns Page

Washing instructions for Sub Zero base layers are printed on a white silk tag stitched to the back neck and can also be found knitted in to the waist band. Please follow these instructions carefully as failure to comply with them will make your guarantee void. If you have removed the tag or are unsure of the washing symbol meaning, the full washing instructions can be found below.

  • Machine wash or hand wash in water not exceeding 40°C or 105°F
  • You can use a mild washing detergent but ideally you want to use a base layer specific washing treatment 
  • Wash dark colours separately, do not bleach, do not use fabric conditioners
  • These base layers can be spun dry in a washing machine
  • Do not tumble dry. These base layers will quickly dry on a line or airer as they retain very little water once spun/rung out. 
  • Do not dry clean
  • Regular ironing may be performed at a low setting (110°C, 230°F) only, but we advise against it.

 

GENERAL WASHING TIPS
When you go to wash any garment with a zip, ensure it is done up fully otherwise the exposed teeth may cause harm in the wash cycle. The same can be said for garments containing Velcro. Your best course of action would be to wash these garments either by hand or on their own in a washing machine.

With the advancement in detergent technology, you very rarely need to wash any garments these days above 30°C. It is better to use a specific anti-bacterial wash-in treatment rather than increasing the temperature.

A lot of Sub zero products, especially the base layers and mid layers, can be ironed on a low temperature setting. We would advise against this as the heat settings on irons are not always reliable. In any case, the stretch properties of synthetics helps reduce creases in the wash and if there are any afterwards, they often drop out when worn.

Like most synthetics, Sub Zero fabrics will melt or burn if exposed to flame or direct heat. They are not flame resistant; do not use them near ANY direct source of heat or flame. This includes some of our merino wool products that contain a small percentage of synthetic yarn.

Factor 1 Long Sleeve Base Layer Turtle Neck Tops ensures you stay warm, dry, and comfortable during cold-weather activities.

Crafted from stretchy tubular 100% polyamide ribbed fabric with a hydrophilic treatment, these unisex tops excel in moisture management, keeping you dry and comfortable during activities. The generous body length ensures the fabric stays securely tucked into leggings, minimising lower back exposure. With set-in sleeves, they deliver a snug yet comfortable fit around the armpits and shoulders, optimising both insulation and moisture-wicking performance. Double-thickness cuffs provide extra wrist protection and help retain warmth, whilst the 5cm high double thickness collar helps insulate the neck.

These base layers are ideal for a variety of activities, including skiing, hiking, and camping. They can also be paired with Sub Zero’s Factor 2 mid-layers for enhanced warmth in harsher conditions.

Please note: These are end-of-line items. Some tops may have slight color variations from being folded or feature different versions of our logo. Despite these minor cosmetic differences, the performance and quality of these garments remain uncompromised. To reflect this, we’ve significantly reduced the price.

Scroll down the page for further product details, technical information, sizing, shipping and any washing instructions.

FREE UK Shipping
On all orders over £50
Quick Delivery
All orders will be delivered within 2-6 business days
Hassle-Free exchange
180 days return policy
5.0 Google Reviews
Customer satisfaction #1 priority