Western Dynamics

Field Manual · Sizing

Pick your
size.

The Bushranger Frame comes in six sizes. The right one depends on your torso length and how much weight you intend to carry. When in between two sizes, lean toward the smaller one — the frame should sit snug on your back, not loose around it.

Size chart

S

Small

Height
Up to 165cm
Pack
30–40 L pack
Best for
Compact carry, range walks under 8kg load

MS

Medium-Small

Height
165–172cm
Pack
35–45 L pack
Best for
Day rucks, light overnighters

M

Medium

Height
172–180cm
Pack
45–55 L pack
Best for
Standard ruck training, weekenders

ML

Medium-Large

Height
178–186cm
Pack
50–60 L pack
Best for
Multi-day, heavier loads

L

Large

Height
184–193cm
Pack
60–75 L pack
Best for
Extended carry, full kit

XL

Extra-Large

Height
190cm+
Pack
75 L+ pack
Best for
Long range, maximum-capacity carries

Heights are guidance only. Torso length matters more than total height — measure from the C7 vertebra (base of neck) to the iliac crest (top of hip bone).

How to measure

Two minutes with a soft tape and a friend gets you a more accurate fit than guessing from height alone.

  1. 01

    Stand upright. Tilt your head forward and find the bony bump at the base of your neck — that's the C7 vertebra.

  2. 02

    Place your hands on your hips with thumbs pointing back. Where your thumbs land is the iliac crest.

  3. 03

    Have someone measure the straight-line distance between those two points along your spine.

  4. 04

    Match the measurement to the chart above. Between sizes? Go smaller — better load transfer.

Still unsure?

Send us your measurements.

We'll size you right or refund the difference.