Knox Dual Active Men's Base Layer LS top
- Chest: Measure around the fullest part of your chest and your shoulder blades.
- Waist: To work out your size, measure your waist in the position your trousers usually sit. As a guide this is roughly 2inches (approx 5-6cm) below your belly button.
- Inside Leg: Measure from the top of your inside leg down to your ankle. You should do this whilst standing to get a more accurate measure. We have 2 leg lengths for men, 33″ (Regular) and 30″ (Short Leg).
| Men's UK Size | Chest (Inches) | Chest (cm) | Waist (inches) | Waist (cm) |
|---|---|---|---|---|
| S | 35-37 | 90-96 | 30 | 76 |
| M | 38-40 | 98-103 | 32 | 81 |
| L | 41-43 | 104-109 | 34 | 87 |
| XL | 44-46 | 110-115 | 36 | 92 |
| 2XL | 46-48 | 116-121 | 38 | 97 |
| 3XL | 48-50 | 122-127 | 40 | 102 |
| 4XL | 50-52 | 128-134 | 42 | 107 |
| 5XL | 52-54 | 135-141 | 44 | 112 |
Knox Dual Active Men's Base Layer LS top
Description
Description
The Knox Dual Active Base Layer forms the foundation of the Seasonless® Collection, engineered as the first layer worn next to the skin. Designed for year-round performance, it delivers a precision fit, lasting comfort, and advanced moisture control. Intended to be worn beneath a Knox armoured shirt, it prevents stickiness and discomfort in the heat, while its versatile design makes it equally suited to other active sports.
Reinvented for 2026, the Dual Active range is crafted from fine, breathable polyester and spandex, delivering a soft, smooth touch while maintaining exceptional stretch and mobility. Bonded seams and reduced stitching create an ultra-flat, streamlined fit, minimising bulk and eliminating pressure points beneath other layers.
Care
Please read care label for washing instructions.
Machine wash cold on a delicate cycle. Use non-bio detergent. Low iron.
Do not use fabric conditioner. Do not tumble dry. Dry flat.
Size Guide (body measurements)
| Size | Chest (cm) | Chest (in) | Waist (cm) | Waist (in) |
|---|---|---|---|---|
| S | 90-96 | 35-37 | 76 | 30 |
| M | 98-103 | 38-40 | 81 | 32 |
| L | 104-109 | 41-43 | 87 | 34 |
| XL | 110-115 | 44-46 | 92 | 36 |
| 2XL | 116-121 | 46-48 | 97 | 38 |
| 3XL | 122-127 | 48-50 | 102 | 40 |
Chest: Measure around the fullest part of your chest and your shoulder blades.
Waist: Measure where your trousers usually sit, roughly 5-6cm below your belly button.
If you measure in between sizes or at the top end of a size, we recommend going up one size.
Features & Fit
Features & Fit
Delivery and Shipping
Delivery and Shipping
1. Flat Rate Shipping of $14 on All Orders within Australia
2. Express Shipping of $20 on All Orders within Australia
Exceptions may apply to our flat shipping rates. We may contact you if your order is being shipped to the Northern Territory. Please note we do not deliver to PO Box addresses.
3. Flat Rate Express Shipping to New Zealand - $40
We offer a flat rate express shipping of $40 for all orders shipped to New Zealand.
Please note that orders shipped to New Zealand may incur additional duties, taxes, or fees upon arrival, which are the responsibility of the customer. Knox is not liable for these additional costs.
If you have any questions, concerns, or wish to discuss your order, please contact us.
