SIZING GUIDE
There are no standard sizes for clothing, which is why each brand has their own unique cut and fit. Please do not presume you are the same size between brands for a similar product. If you have a base layer that fits correctly, then use it as a template for these measurements.
HOW TO MEASURE
Chest - Measure the full circumference of your chest just below the armpits
Waist - Measure the full circumference at the top of your hips
Back Drop - Measure from the back of your neck to the base of your spine
Arm Length* - Measure from the end of your shoulder to your wrist
* This measurement is only applicable for long sleeves. Short sleeve versions of the base layer tops finish just above the elbow.
BASE LAYER FIT
Our base layers have a lot of stretch, so they will contour to most body shapes when worn. You should wear them close fitting but not so they are restrictive. Wearing baggy or ill fitting base layers will lead to the loss of heat and a reduction in their wicking properties.
Please be aware that these measurements are taken from the garments unstretched, apart from the 'TO FIT CHEST' column, that indicates the range of fit. The back-drop is the critical measurement. This ensures the body length is correct to prevent lower back exposure. Even if the chest measurement looks too small, the stretch of the fabric will enable a good fit.
The table below shows the garment measurements for our Factor 1 Plus base layers. There is a tolerance of +/- 5mm.
| SIZE | CHEST | TO FIT CHEST | WAIST | BACK DROP | ARM LENGTH | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| cm | in | cm | in | cm | in | cm | in | cm | in | |
| XSMALL | 71 | 28 | 71-79 | 28-31 | 79 | 31 | 63 | 24 | 61 | 24 |
| SMALL | 74 | 29.5 | 81-87 | 32-34 | 80 | 31.5 | 65 | 25 | 62 | 24.5 |
| MEDIUM | 79 | 31 | 89-94 | 35-37 | 85 | 33.5 | 67 | 26 | 63 | 25 |
| LARGE | 85 | 33.5 | 97-102 | 38-40 | 91 | 36 | 69 | 27 | 64 | 25.5 |
| XLARGE | 91 | 36 | 104-107 | 41-42 | 97 | 38 | 71 | 28 | 65 | 26 |
| XXLARGE | 92 | 36.5 | 109-114 | 43-45 | 98 | 38.5 | 74 | 29 | 68 | 27 |
The table below shows the actual garment weights per size for each of the different styles of Factor 1 Plus base layer tops we manufacture. There is a tolerance of +/- 10g.
| SIZE | LONG SLEEVE | SHORT SLEEVE | ZIP LONG SLEEVE | ZIP SHORT SLEEVE | VEST | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| g | oz | g | oz | g | oz | g | oz | g | oz | |
| XSMALL | 160 | 5.6 | 130 | 4.6 | - | - | - | - | - | - |
| SMALL | 175 | 6.2 | 140 | 4.9 | 185 | 6.5 | 155 | 5.5 | - | - |
| MEDIUM | 190 | 6.7 | 160 | 5.6 | 200 | 7.1 | 175 | 6.2 | 120 | 4.2 |
| LARGE | 210 | 7.4 | 175 | 6.2 | 220 | 7.8 | 190 | 6.7 | 135 | 4.8 |
| XLARGE | 230 | 8.1 | 185 | 6.4 | 240 | 8.5 | 210 | 7.4 | 150 | 5.3 |
| XXLARGE | 240 | 8.5 | 205 | 7.2 | - | - | - | - | - | - |
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 £35 are shipped free of charge
USA & CANADA
*All USA & Canada orders over £200 are shipped free of charge
EUROPE
REST OF WORLD
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.
SIZING GUIDE
There are no standard sizes for clothing, which is why each brand has their own unique cut and fit. Please do not presume you are the same size between brands for a similar product. If you have a base layer that fits correctly, then use it as a template for these measurements.
HOW TO MEASURE
Chest - Measure the full circumference of your chest just below the armpits
Waist - Measure the full circumference at the top of your hips
Back Drop - Measure from the back of your neck to the base of your spine
Arm Length* - Measure from the end of your shoulder to your wrist
* This measurement is only applicable for long sleeves. Short sleeve versions of the base layer tops finish just above the elbow.
BASE LAYER FIT
Our base layers have a lot of stretch, so they will contour to most body shapes when worn. You should wear them close fitting but not so they are restrictive. Wearing baggy or ill fitting base layers will lead to the loss of heat and a reduction in their wicking properties.
Please be aware that these measurements are taken from the garments unstretched, apart from the 'TO FIT CHEST' column, that indicates the range of fit. The back-drop is the critical measurement. This ensures the body length is correct to prevent lower back exposure. Even if the chest measurement looks too small, the stretch of the fabric will enable a good fit.
The table below shows the garment measurements for our Factor 1 Plus base layers. There is a tolerance of +/- 5mm.
| SIZE | CHEST | TO FIT CHEST | WAIST | BACK DROP | ARM LENGTH | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| cm | in | cm | in | cm | in | cm | in | cm | in | |
| XSMALL | 71 | 28 | 71-79 | 28-31 | 79 | 31 | 63 | 24 | 61 | 24 |
| SMALL | 74 | 29.5 | 81-87 | 32-34 | 80 | 31.5 | 65 | 25 | 62 | 24.5 |
| MEDIUM | 79 | 31 | 89-94 | 35-37 | 85 | 33.5 | 67 | 26 | 63 | 25 |
| LARGE | 85 | 33.5 | 97-102 | 38-40 | 91 | 36 | 69 | 27 | 64 | 25.5 |
| XLARGE | 91 | 36 | 104-107 | 41-42 | 97 | 38 | 71 | 28 | 65 | 26 |
| XXLARGE | 92 | 36.5 | 109-114 | 43-45 | 98 | 38.5 | 74 | 29 | 68 | 27 |
The table below shows the actual garment weights per size for each of the different styles of Factor 1 Plus base layer tops we manufacture. There is a tolerance of +/- 10g.
| SIZE | LONG SLEEVE | SHORT SLEEVE | ZIP LONG SLEEVE | ZIP SHORT SLEEVE | VEST | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| g | oz | g | oz | g | oz | g | oz | g | oz | |
| XSMALL | 160 | 5.6 | 130 | 4.6 | - | - | - | - | - | - |
| SMALL | 175 | 6.2 | 140 | 4.9 | 185 | 6.5 | 155 | 5.5 | - | - |
| MEDIUM | 190 | 6.7 | 160 | 5.6 | 200 | 7.1 | 175 | 6.2 | 120 | 4.2 |
| LARGE | 210 | 7.4 | 175 | 6.2 | 220 | 7.8 | 190 | 6.7 | 135 | 4.8 |
| XLARGE | 230 | 8.1 | 185 | 6.4 | 240 | 8.5 | 210 | 7.4 | 150 | 5.3 |
| XXLARGE | 240 | 8.5 | 205 | 7.2 | - | - | - | - | - | - |
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 £35 are shipped free of charge
USA & CANADA
*All USA & Canada orders over £200 are shipped free of charge
EUROPE
REST OF WORLD
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 Plus Mens Long Sleeve Base Layer Tops offer excellent moisture management whilst still keeping you warm, making them some of the best thermals to wear next to your skin.
Manufactured from super soft 100% polyamide fabric, these base layer tops utilise body mapping technology to construct innovative seamless body forms, enabling features such as stretch rib zones for support and waffle zones for enhanced heat retention and greater perspiration control.
The only seams present on these base layer thermal tops are on the sleeves and the shoulders where they incorporate other design features. The set-in sleeves provide a much more tailored fit in the armpits, maximising insulation and moisture transportation (wicking), whilst the seam on the sleeve length allows the addition of a thumb hole near to the cuff. This allows the wearer to place further layers on top of the base layer without the sleeves riding up, and can also protect the palm of the hand from cold weather. The round neck has been designed so that it stretches when placed over your head and its low profile also means it is not prominent when worn under clothing. Body lengths in all our base layer and mid layer designs are long, giving the wearer a decent amount of fabric to tuck in to their trousers. This helps to avoid lower back exposure during activities and when sitting down.
These Sub Zero tops are one of the best lightweight thermal underwear ranges for general outdoor use. The simple design makes them compatible with most sports where you need to keep warm and dry. They cross over in to anything from skiing through to hiking and camping, and can be used in combination with the Sub Zero Factor 2 thermal mid layer range for extra warmth in extreme conditions.
Please note: The grey marl, khaki, white and black versions now come with a raglan sleeve finish.
Scroll down the page for further product details, technical information, sizing, shipping and any washing instructions.
