PROUDLY DESIGNED, CUT & SEWN IN UTAH.
RYAN IS USING A J-STRAP
J-Strap vs. S-Strap: Which ULA Shoulder Strap is Right for You?
When choosing a ULA pack, one of the key decisions you’ll make is selecting between J-Straps and S-Straps. While both options offer comfort and support, their design differences cater to different body types and preferences. Let’s break down the features of each to help you decide which is best for your next adventure.
Backpacks have evolved significantly over time, and shoulder strap design has played a crucial role in making packs more comfortable and efficient.
Early Backpacks: Basic Straps for Load Carrying
The earliest backpacks, dating back centuries, were simple sacks with basic rope or leather straps. These packs were designed to carry supplies over long distances but lacked ergonomic considerations. These featured developed over time most largely influenced by the following:
- Military Influence: During World War I and II, military packs introduced wider, padded straps to distribute weight more effectively for soldiers. The ALICE and MOLLE pack systems, developed for the U.S. military, used adjustable and padded straps for better comfort under heavy loads.
- Outdoor Industry Growth: By the mid-20th century, brands like Kelty and JanSport began refining backpack designs, adding contoured shoulder straps and hip belts for hiking and mountaineering.
The Introduction of J-Straps and S-Straps
- J-Straps: The classic J-shape became the standard due to its straightforward design, working well for most hikers and outdoor enthusiasts. It provided balanced weight distribution without unnecessary complexity.
- S-Straps: As outdoor gear became more specialized and women became more interested in backpacking the need for a more anatomical fit, especially for women and those with narrower shoulders, became prevalent. The S-strap was developed to provide better ergonomics, reducing pressure points and improving fit for a wider range of body types.
What Are J-Straps?
J-Straps are the standard shoulder strap shape found on most backpacks. They follow a straight, slightly curved design that contours well to many body types. You might have already guessed it, but yes, they are shaped like a J.
Benefits of J-Straps:
- Simplicity and Familiarity: Most hikers are accustomed to J-Straps since they are the default design for many packs.
- Great for Athletic Builds: Those with a slimmer torso profile and flat shoulders would find the most comfort in our J-strap. Think ectomorph to endomorph body types.
- Even Weight Distribution: The straightforward design ensures even weight distribution across the shoulders and chest.
Best for:
- Most male hikers
- Those with flat shoulders or a more square frame
- Hikers who prefer a traditional backpack
NOTICE THE CURVES OF THE S VS J
REBEKAH IS WEARING AN S-STRAP (BEST FOR WOMEN)
TJ USES AN S-STRAP (BROAD CHEST AND SHOULDERS)
What Are S-Straps?
S-Straps feature a more pronounced curve that better follows the shape of the chest and shoulders. This design is particularly useful for those with narrower shoulders or a more contoured upper body and bust. S-straps were designed for female hikers to accommodate their bust and more pronounced curves. They’re designed to have a more contoured fit around the chest which keeps them out of your way while hiking.
Benefits of S-Straps:
- Better Fit for Narrow Shoulders: The ergonomic curve hugs the body more naturally, reducing pressure points.
- Increased Comfort for Women: The shape can accommodate different chest shapes more comfortably, reducing pinching or uncomfortable weight distribution.
- More Secure Fit: The contouring can help keep the straps in place, especially on uneven terrain.
Best for:
- Many female hikers, men who have a large chest and sloped shoulders. If you’ve got an endomorph build as a man, these are your best bet.
- Those with narrow or sloping shoulders
- Hikers looking for a more form-fitting design
How to Choose Between J-Straps and S-Straps
- Consider Your Shoulder Width – If you have broad shoulders, J-Straps might provide a better fit. If your shoulders are narrower or sloped, S-Straps offer a more secure and comfortable feel.
- Think About Pack Load – Heavier loads may feel more comfortable with J-Straps due to their even weight distribution, while S-Straps can be beneficial for lighter loads where contouring improves fit.
- Personal Preference Matters – Ultimately, comfort is subjective. If possible, try on both options to see what feels best for your hiking style and body shape.
The Bottom Line
Both J-Straps and S-Straps are designed with comfort and functionality in mind, and there’s no universal “best” choice—only what works best for you. Whether you’re tackling long-distance treks or weekend getaways, choosing the right shoulder strap style can make all the difference in your hiking experience.
Still unsure which strap to choose? Reach out to us at ULA Equipment—we’re happy to help you find the perfect fit for your adventure!
ENSURING A PROPER PACK FIT WILL KEEP YOU ON TRAIL LONGER.
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