Osprey Stratos 24l - Men's
Osprey Stratos 24l - Men's
Osprey Stratos 24l - Men's
Stratos 24L
Osprey

Stratos 24L

Men
$179.95
Color: Cetacean Blue
Size: O/S
Size chart

Shoe Size Chart

Women's Shoe Size Conversion

US & Canada 10 10.5 11 11.5 12 4 4.5 5 5.5 6 6.5 7
AU 7 7.5 8 8.5 2 2.5 3 3.5 4
UK 8 8.5 9 9.5 10 2 2.5 3 3.5 4 4.5 5
Europe 40-41 41 41-42 42 42-43 35 35 35-36 36 36-37 37 37-38
Inches 10.2 in 10.3 in 10.5 in 10.7 in 10.9 in 8.5 in 8.3 in 8.5 in 8.8 in 8.9 in 9.1 in 9.3 in
Centimeters 25.9 cm 26.2 cm 26.7 cm 27.1 cm 27.6 cm 20.8 cm 21.3 cm 21.6 cm 22.2 cm 22.5 cm 23 cm 23.5 cm

Men's Shoe Size Conversion

US & Canada 10 10.5 11 11.5 12 13 14 15 16 6 6.5
AU 9 9.5 10 10.5 11 12 13 14 15 5 5.5
UK 9.5 10 10.5 11 11.5 12.5 13.5 14.5 15.5 5.5 6
Europe 43 43-44 44 45-45 45 46 47 48 49 39 39
Inches 10.6 in 10.8 in 10.9 in 11.1 in 11.3 in 11.6 in 11.9 in 12.2 in 12.5 in 9.3 in 9.5 in
Centimeters 27 cm 27.3 cm 27.9 cm 28.3 cm 28.6 cm 29.4 cm 30.2 cm 31 cm 31.8 cm 23.5 cm 24.1 cm

Big Kids' Shoe Size Conversion (7–12 Years)

US & Canada 3.5 4 4.5 5 5.5 6 6.5
AU
UK 2.5 3 3.5 4 4.5 5 5.5
Europe 35 36 36 37 37 38 38
Inches 8.6 in 8.8 in 9 in 9.1 in 9.3 in 9.5 in 9.6 in
Centimeters 21.9 cm 22.2 cm 22.9 cm 23.2 cm 23.5 cm 24.1 cm 24.4 cm

Little Kids' Shoe Size Conversion (4–7 Years)

US & Canada 1 1.5 10.5 11 11.5 12 12.5 13 13.5 2 2.5 3
AU
UK 13 14 9.5 10 10.5 11 11.5 12 12.5 1 1.5 2
Europe 32 33 27 28 29 30 30 31 31 33 34 34
Inches 7.8 in 8 in 6.6 in 6.8 in 7 in 7.1 in 7.3 in 7.5 in 7.6 in 8.1 in 8.3 in 8.5 in
Centimeters 19.7 cm 20.3 cm 16.8 cm 17.1 cm 17.8 cm 18.1 cm 18.4 cm 19.1 cm 19.4 cm 20.6 cm 21 cm 21.6 cm

Toddlers' Shoe Size Conversion (9 Months–4 Years)

US & Canada 10 3.5 4 4.5 5 5.5 6 6.5
AU
UK 27 19 19 20 20 21 22 22
Europe 9 2.5 3 3.5 4 4.5 5 5.5
Inches 6.5 in 4.3 in 4.5 in 4.6 in 4.8 in 5 in 5.1 in 5.3 in
Centimeters 16.5 cm 10.8 cm 11.4 cm 11.7 cm 12.1 cm 12.7 cm 12.7 cm 13.3 cm
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About this product

Ideal for day hikes and quick outdoor escapes, the Osprey Stratos 24 delivers breathable comfort with reliable structure. The ventilated backpanel system keeps air moving on warm climbs. Compact yet capable, it’s built for organized, all-day carry.

Comfort & Performance

  • Breathable mesh backpanel and harness system
  • EVA-padded backpanel for cushioned support
  • Adjustable shoulder straps and sternum strap
  • Sternum buckle with integrated safety whistle

Design & Materials

  • High-tenacity nylon fabric construction
  • Lightweight nylon interior lining
  • Reinforced webbing and structural panels
  • Streamlined 24L daypack silhouette

Osprey Size Chart

Men's Sizing

Torso

 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)
M Outdoor
                        
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 -  

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 - -  
M Hydration
                        
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 - - -  
M Travel
                        
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 - -  

Unisex Sizing

Torso

 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)
Outdoor
                        
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
 O/S
 O/S
 - - -
Osprey Sportlite 25, 30 S/M S/M S/M S/M
 S/M or M/L
 M/L
 M/L M/L M/L - - -
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
 - - - -
Mutant Nimsdai 90 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
                        
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
                        
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
                        
Poco SLT, Poco LT,
Poco, Poco Plus,
Poco Premium		 - O/S O/S O/S O/S O/S O/S O/S - - - -

Kids' Sizing

Torso

 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)
Ace 75 (age 12-17) - - - O/S O/S O/S O/S O/S - - - -
Ace 50 (age 8-14) | Ace 65 (age 10-17) - - - O/S O/S O/S O/S O/S - - - -
Ace 38 (age 5-11) - O/S O/S O/S O/S O/S - - - - - -
Jet 18 (age 8-14) - - O/S O/S O/S O/S O/S - - - - -
Hydrajet (age 4-12) O/S O/S O/S O/S O/S - - - - - - -
Daylite JR (age 4-12) O/S O/S O/S O/S O/S - - - - - - -
Moki (age 4-12) O/S O/S O/S O/S O/S O/S - - - - - -
Talon |
Tempest JR (age 8-14)		 - - O/S O/S O/S O/S O/S - - - - -
Raptor Jr | Raven Jr (age 6-14) - - O/S O/S O/S O/S O/S - - - -  

Women's sizing

Torso

 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)
W Outdoor
                        
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 - -

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 - - -
W Hydration
                        
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 - - - -
W Travel
                        
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 - - -

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.
Vestpack Primary Use  Sizes Offered  Chest Circumference 
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 
Duro 15  Running  Men's S/M
Men's M/L		 29.5-41 in / 75-105 cm
41-47 in / 105-120 cm
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
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

Shipping & Returns

No-sweat, free shipping & returns!

United States Orders

  • Free shipping 3-5 days
  • Free returns/exchanges
  • Expedited 2-day shipping also available

International Orders

  • Free shipping
  • Hassle-free returns/exchanges
  • Restocking fee applied

Learn More

Barcode: 843820132496

*Shipping within Continental US: 2-5 days. International shipping: 7-11 days. See shipping policy here.

**Shoes must be unworn. See return policy here.

***Price match guarantee does not apply to Clearance or Final Sale items. See details here.

Can't find your size? Put in a request with our sourcing team!

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Stratos 24L
Osprey

Stratos 24L

$179.95
Men
Cetacean Blue
  • Cetacean Blue
O/S
  • O/S
add to cart