Sizes in inches
Size guides list inches first, with centimetres alongside.


All measurements in cm — small variations of 1–2 cm are possible.
| Size | Waist | Body height |
|---|---|---|
| XS | 25.6–31.5 in (65-80 cm) | 63.0–65.0 in (160-165 cm) |
| S | 31.5–37.4 in (80-95 cm) | 63.0–66.9 in (160-170 cm) |
| M | 32.3–39.0 in (82-99 cm) | 63.0–68.9 in (160-175 cm) |
| L | 33.1–40.6 in (84-103 cm) | 63.0–70.9 in (160-180 cm) |
| XL | 33.9–42.1 in (86-107 cm) | 63.0–72.8 in (160-185 cm) |
| 2XL | 34.6–43.3 in (88-110 cm) | 63.0–74.8 in (160-190 cm) |
| 3XL | 35.4–44.1 in (90-112 cm) | 63.0–76.8 in (160-195 cm) |
| 4XL | 36.2–44.9 in (92-114 cm) | 63.0–78.7 in (160-200 cm) |
| 5XL | 39.4–47.2 in (100-120 cm) | 63.0–80.7 in (160-205 cm) |
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Mix sizes and colours. The discount is applied in your cart.
A unisex back support with shoulder straps, a broad rear panel and bands that cross over the back and fasten at the waist. Pull the bands to set the fit. It is light and open at the sides, made to wear over a thin layer.
Good for: wearing over a T-shirt or light layer at home, at your desk or during chores, when you want a snug fit you can adjust yourself.
Not made for: wearing over a thick sweater or coat; it is shaped to sit over a light layer. Ask your doctor or physiotherapist if you're not sure it's right for you.
Measure around your waist and find it in the size guide, which also lists body height for each size. Small differences of 1–2 cm are possible. Put it on over a light layer, then adjust the crossed bands until it feels snug but comfortable.
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ABOUT BIRCHWOOD
We choose clothing and gear for people who walk the dog before work, spend weekends at the cottage and want boots that stay comfortable all day.
Every product page tells you what it's good for, and what it isn't. We list the materials and measurements we know, and say so when the maker doesn't. Not sure what fits? Email us and we'll help you choose.
Size guides list inches first, with centimetres alongside.
Dog walks, errands and weekends at the cottage. Not mountaineering.
Email us your question. We usually reply within 24 hours.
SIZING HELP
Tell us your usual size and how you will wear it. We usually reply within 24 hours, Monday to Friday.