Size Chart

SIZE CHART

Use your torso length, hip measurement or chest circumference to find the right pack size. Sizing can vary by product, so always check the size shown on the product page.

Backpack Torso Size

Measure from the C7 vertebra at the base of your neck down to the iliac crest at the top of your hip bones.

Pack Type Size Torso Length
Men's / Unisex S/M 17–21 in / 43–53 cm
Men's / Unisex L/XL or M/L 19–24 in / 48–61 cm
Women's XS/S 13–17 in / 33–43 cm
Women's M/L 16–20 in / 40.5–51 cm
One Size O/S Range varies by pack model

Torso ranges overlap on adjustable packs. Choose the size specified for the individual pack when its product chart differs.

Hipbelt Size

Measure around the hips at the iliac crest rather than around the waist.

Size Hip Measurement
S/M 26–45 in / 65–114 cm
M 27–48 in / 69–121 cm
M/L 28–50 in / 70–127 cm
L 29–55 in / 72–140 cm
O/S 25–50 in / 64–127 cm
Extended Fit O/S 40–70 in / 101–177 cm
Running Vest Size

Measure around the widest part of your chest or bust, just below the armpits.

Duro 6 / Duro 1.5 / Duro LT / Duro Pro

Men's Size Chest Circumference
S 34.5–37 in / 88–94 cm
M 37–42.5 in / 94–108 cm
L 42.5–46.5 in / 108–118 cm

Dyna 6 / Dyna 1.5 / Dyna LT / Dyna Pro

Women's Size Chest Circumference
S 31.5–35 in / 80–89 cm
M 35–38.5 in / 89–98 cm
L 38.5–42.5 in / 98–108 cm

Escapist Velocity 3 / 6

Unisex Size Chest Circumference
S/M 26.5–36 in / 67–92 cm
L/XL 35–47 in / 89–119 cm