Osprey - Size & Fit
OSPREY FITTING & LEARNING
Find Your Perfect Pack Fit
Osprey’s custom-fit heritage goes back to 1974. A correctly fitted backpack helps maximise comfort, efficiency and stability—whether you’re heading into the mountains, travelling, commuting or carrying gear every day.
01
Size & Fit
Custom-fit backpacks are Osprey’s legacy. Their expertise in designing backpacks to fit different shapes, sizes and body types dates back to 1974, when Osprey was founded on designing custom packs for mountaineers headed to the Sierra.
A properly fitting pack helps maximise efficiency, comfort and safety both on and off the trail.
02
Sizing Overview
Fit should not be compromised for other considerations. Body shape and sizing varies from customer to customer, and not every customer will fit every pack. Adjustable packs allow you to fine-tune the fit for optimal carry performance.
03
Torso Length / Sizing
Many Osprey packs are available in multiple sizes to fit a range of torso lengths. Use the three steps below to determine your torso measurement.
How to measure: Start at the iliac crest—the top of your hipbone on the side of your body that acts like a shelf. From this point, measure to the C7 vertebra, the knobby bone at the base of your neck when you put your head down. Then use the torso-length charts below to match the correct pack size.
04
Hipbelt Sizing
Measure around the hips at the iliac crest, not the waist. The padded portion should wrap well around the hips, leaving a gap of 3″ to 6″ between the tips of both hip pads when securely tightened.
Fixed hipbelt sizing
XS24–25″ / 60–114 cm
S24–25″ / 60–114 cm
S/M26–45″ / 65–114 cm
M27–48″ / 69–121 cm
M/L28–50″ / 70–127 cm
L29–55″ / 72–140 cm
O/S25–50″ / 64–127 cm
S/M EF17–20.5″ / 43–52 cm
L/XL EF19.5–23″ / 49–58 cm
O/S EF40–70″ / 101–177 cm
WXS/S EF13.5–17″ / 34–43 cm
WM/L EF16–19.5″ / 40–49 cm
Hipbelt adjustment options
Adjustable and custom packs allow you to make sizing adjustments to the hipbelt.
Fit-on-the-Fly adjustable hipbelt: Atmos/Aura AG, Volt/Viva, Aced (kids), Poco Child Carrier.
05
Pack Sizing Charts
Use the torso reference and category tables below to identify the recommended pack size. On smaller screens, swipe horizontally across a table to view all measurements.
Men’s sizing
Torso
Torso reference14″ / 35.5cm15″ / 38cm16″ / 40.5cm17″ / 43cm18″ / 46cm19″ / 48cm20″ / 51cm21″ / 53cm22″ / 56cm23″ / 58.5cm24″ / 61cm25″ / 63.5cm
Outdoor
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aether Plus | Aether | – | – | – | S/M | S/M | S/M or L/XL | S/M or L/XL | S/M or L/XL | L/XL | L/XL | ||
| Aether Pro | – | – | – | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | L/XL | – | |
| Atmos AG™ | – | – | – | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | L/XL | L/XL | – | |
| Atmos AG LT | – | – | – | S/M | S/M | S/M | S/M | L/XL | L/XL | L/XL | – |
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| New 2025 Talon 11, 22 , 26, 33 Extended fit 22, 33 | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
| New 2025 Talon 44 | – | – | S/M | S/M | S/M | S/M or L/XL | L/XL | L/XL | L/XL | L/XL | – | |
| Talon | Talon Pro | Talon Velocity |
– | – | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | – | – | ||
| Talon 6 | O/S HIPBELT FIT RANGE IS 25-50″ (64-127 CM) | |||||||||||
| Rook | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
| Volt | – | – | – | O/S | O/S | O/S | O/S | OS | – | – | ||
| Exos | Exos Extended Fit | – | – | – | S/M | S/M | S/M OR L/X | S/M OR L/XL | L/XL | L/XL | L/XL | – | |
| Exos Pro | – | – | – | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | L/XL | – | |
| Kestrel | – | – | S/M | S/M | S/M or L/XL | S/M or L/XL | S/M or L/XL | L/XL | L/XL | – | ||
| Osprey UNLTD AG 32 | – | – | – | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | L/XL | – | |
| Stratos | – | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | |
| Soelden Pro | Soelden | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
| Kamber 20,30 | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
Hydration
14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)23″ (58.5cm)24″ (61cm)25″ (63.5cm)
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manta | Skarab | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
| Duro LT, 6, 1.5 | SMALL (30-35″ / 75-90 CM.) MEDIUM (35-41″ / 90-105 CM.) LARGE (41-47″ / 105-120 CM.)— CHEST MEASUREMENT | |||||||||||
| Duro 15 | S/M (30-41″ / 76-104 CM.) M/L (41-47″ / 104-119 CM.) — CHEST MEASUREMENT | |||||||||||
| Raptor | Raptor Extended Fit | Syncro| Siskin | Katari |
– | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – | |
Travel
14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)23″ (58.5cm)24″ (61cm)25″ (63.5cm)
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Farpoint Travel Pack | – | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | |
| Farpoint Trek | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | |
| Ozone Duplex (M) | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – |
Women’s sizing
Torso
Torso reference11″ / 28cm12″ / 30.5cm13″ / 33cm14″ / 35.5cm15″ / 38cm16″ / 40.5cm17″ / 43cm18″ / 46cm19″ / 48cm20″ / 51cm21″ / 53cm22″ / 56cm
Outdoor
| Pack | 11″ (28cm) | 12″ (30.5cm) | 13″ (33cm) | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ariel Plus | Ariel | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Ariel Pro | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Aura AG | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Aura AG LT | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Pack | 11″ (28cm) | 12″ (30.5cm) | 13″ (33cm) | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| New 2025 Tempest 11, 22, 26, 33 Extended fit 22, 33 | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| New 2025 Tempest 44 | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | – | – | – |
|
Tempest | Tempest Pro | Tempest Velocity |
– | – | – | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | – | – | – |
| Tempest 6 | O/S HIPBELT FIT RANGE IS 24-44″ (61-112 CM.) | |||||||||||
| Renn | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Viva | – | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Eja | Eja Extended Fit | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Eja Pro | – | – | XS/S | XS/S | XS/S | XS/S OR M/L | XS/S OR M/L | M/L | M/L | M/L | – | – |
| Kyte | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Osprey UNLTD AG 32 | – | – | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | – | – |
| Sirrus | – | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Sopris Pro | Sopris | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Kresta 20, 30 | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
Hydration
11″ (28cm)12″ (30.5cm)13″ (33cm)14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)
| Pack | 11″ (28cm) | 12″ (30.5cm) | 13″ (33cm) | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mira | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – | – |
| Skimmer | – | – | – | – | O/S | O/S | O/S | O/S | – | – | – | – |
| Dyna LT, 6, 1.5 | SMALL (26-30″ / 65-75 CM.) MEDIUM (30-35″ / 75-90 CM.) LARGE (35-41″ / 90-105 CM.)— CHEST MEASUREMENT | |||||||||||
| Dyna 15 | S/M (26-35″ / 66-90 CM.) M/L (35-41″ / 90-104 CM.) — CHEST MEASUREMENT | |||||||||||
|
Raven | Raven Extended Fit | Sylva | Salida | Kitsuma |
– | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – | – |
Travel
11″ (28cm)12″ (30.5cm)13″ (33cm)14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)
| Pack | 11″ (28cm) | 12″ (30.5cm) | 13″ (33cm) | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fairview Travel Pack | – | – | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Fairview Trek | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Ozone Duplex (W) | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
Unisex sizing
Torso
Torso reference14″ / 35.5cm15″ / 38cm16″ / 40.5cm17″ / 43cm18″ / 46cm19″ / 48cm20″ / 51cm21″ / 53cm22″ / 56cm23″ / 58.5cm24″ / 61cm25″ / 63.5cm
Outdoor
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hikelite 18, 26 | – | O/S | O/S | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Hikelite 28, 32 | – | S/M | S/M | S/M | S/M or M/L | S/M or M/L | M/L | M/L | M/L | – | – | – |
| Glade 5, 12 | – | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – |
| Firn 18, 28 | – | S/M | S/M | S/M | S/M or M/L | S/M or M/L |
M/L |
M/L |
M/L |
– | – | – |
| Osprey Sportlite 15, 20 | – | O/S | O/S |
O/S |
O/S |
O/S |
O/S |
– |
– |
– | – | – |
| Osprey Sportlite 25, 30 | – | – | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – | – |
| Mutant 22 | – | – |
O/S |
O/S |
O/S |
O/S |
O/S |
– | – | – | – | – |
| Mutant 52, 38 | S/M |
S/M |
S/M |
S/M or M/L |
M/L |
M/L |
M/L |
M/L |
– | – | – | – |
| Zealot 30 | – | – | O/S | O/S | O/S | O/S | O/S | – | – | – | – | – |
| Zealot 45 | S/M | S/M | S/M | S/M or M/L | M/L | M/L | M/L | M/L | – | – | – | – |
Hydration
14″ (35.5cm)15″(38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)23″ (58.5cm)24″ (61cm)25″ (63.5cm)
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Duro Dyna Belt | O/S HIPBELT FIT RANGE IS 24 – 45″ (60 – 115 CM) | |||||||||||
| Raptor Pro | – | – | – |
O/S |
O/S |
O/S |
– | – | – | – | – | – |
| Savu |
O/S HIPBELT FIT RANGE IS 26 – 50″ (66 – 127 CM) |
|||||||||||
| Seral | O/S HIPBELT FIT RANGE IS 26 – 50″ (66 – 127 CM) | |||||||||||
Bike Commute
14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)23″ (58.5cm)24″ (61cm)25″ (63.5cm)
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Radial | – | – | – |
O/S |
O/S |
O/S |
O/S |
O/S |
O/S |
– | – | – |
| Metron 26, 24 | – |
O/S |
O/S |
O/S |
O/S |
O/S |
O/S |
O/S |
– | – | – | – |
Child Carrier
14″ (35.5cm)15″ (38cm)16″ (40.5cm)17″ (43cm)18″ (46cm)19″ (48cm)20″ (51cm)21″ (53cm)22″ (56cm)23″ (58.5cm)24″ (61cm)25″ (63.5cm)
| Pack | 14″ (35.5cm) | 15″ (38cm) | 16″ (40.5cm) | 17″ (43cm) | 18″ (46cm) | 19″ (48cm) | 20″ (51cm) | 21″ (53cm) | 22″ (56cm) | 23″ (58.5cm) | 24″ (61cm) | 25″ (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Poco SLT, Poco LT, Poco, Poco Plus, Poco Premium |
– | O/S | O/S | O/S | O/S | O/S | O/S | O/S | – | – | – | – |
VESTPACK SIZING
Osprey running and biking vestpacks come in a multiple sizes based on chest circumference. Depending on the product, the fit may be gender-specific or unisex, with two or three size options available.
To find your size:
Measure the circumference of your chest at its widest part—across your chest/bust, just below the armpits and around your back. Then, locate your vestpack on the chart below and use your chest circumference measurement to choose the best size.
To find your size:
Measure the circumference of your chest at its widest part—across your chest/bust, just below the armpits and around your back. Then, locate your vestpack on the chart below and use your chest circumference measurement to choose the best size.
| Vestpack | Primary Use | Sizes Offered | Chest Circumference |
|---|---|---|---|
| Duro™ 6 | Duro 1.5 | Duro LT | Running | Men’s Small Men’s Medium Men’s Large |
34.5-37 in / 88-94 cm 37-42.5 in / 94-108 cm 42.5-46.5 in / 108-118cm |
| Duro Pro 7 | Duro Pro 10 | Running | Men’s Small Men’s Medium Men’s Large |
34.5-37 in / 88-94 cm 37-42.5 in / 94-108 cm 42.5-46.5 in / 108-118cm |
| Dyna 6 | Dyna 1.5 | Dyna LT | Running | Women’s Small Women’s Medium Women’s Large |
31.5-35 in / 80-89 cm 35-38.8 in / 89-98 cm 38.5-42.5 in / 98-108 cm |
| Dyna Pro™ 7 | Dyna Pro 10 | Running | Women’s Small Women’s Medium Women’s Large |
31.5-35 in / 80-89 cm 35-38.8 in / 89-98 cm 38.5-42.5 in / 98-108 cm |
| *Past-Season* Duro 6 | Duro 1.5 | Duro LT | Running | Men’s Small Men’s Medium Men’s Large |
29.5-35 in / 75-90 cm 35-41 in / 90-105 cm 41-47 in / 105-120 cm |
| *Past-Season* Duro 15 | Running | Men’s S/M Men’s M/L |
29.5-41 in / 75-105 cm 41-47 in / 105-120 cm |
| *Past-Season* Dyna 6 | Dyna 1.5 | Dyna LT | Running | Women’s Small Women’s Medium Women’s Large |
26-29.5 in / 65-75 cm 29.5-35 in / 75-90 cm 35-41 in / 90-105 cm |
| *Past-Season* Dyna 15 | Running | Women’s S/M Women’s M/L |
26-35 in / 65-90 cm 35-41 in / 90-105 cm |
| Escapist Velocity 3 | Biking | Unisex S/M Unisex L/XL |
26.5-36 in / 67-92 cm 35-47 in / 89-119 cm |
| Escapist Velocity 6 | Biking | Unisex S/M Unisex L/XL |
26.5-36 in / 67-92 cm 35-47 in / 89-119 cm |
