LYD question

[one2many]

How much weight can one carry in the Large Yeoman Duffel (72L) using shoulder strap? Since I liter of water is 1kg weight, can it be 72kg (158.7#)?
Are shoulder strap attachment points reinforced with rivets and/or hidden polyester strips? Is plastic capable of withstanding the weight?
Thanks.

[Chris D.]

I’m no expert but 158lbs seems to be too much weight for this bag....72L is based on volume and doesn’t equate to weight.

Chris D.

[GrussGott]

How much weight can one carry in the Large Yeoman Duffel (72L) using shoulder strap? Since I liter of water is 1kg weight, can it be 72kg (158.7#)?
Are shoulder strap attachment points reinforced with rivets and/or hidden polyester strips? Is plastic capable of withstanding the weight?
Thanks.

I've had 78lbs in my A45 and hiked it about 2 miles via the shoulder straps ... are you thinking of hanging it and filling it or something? (unless you're The Rock) I have no idea what TB would say, but I'd put about a 150lb max limit on the bags with about 100lbs being the most i'd ever try to move routinely. If you are, maybe goruck, mystery ranch or triple aught?

[one2many]

No, I will not carry this much weight
The reason i am asking is I want to understand what those plastic shoulder strap attachment clips and corresponding loops were designed to withstand. I had number of large bags ripped out when heavily packed and picked up (say from a luggage carousel etc.).
I assume TB is much better wrt reinforcements on these weak points, just want to get some idea about the design.

[Darcy]

How much weight can one carry in the Large Yeoman Duffel (72L) using shoulder strap? Since I liter of water is 1kg weight, can it be 72kg (158.7#)?
Are shoulder strap attachment points reinforced with rivets and/or hidden polyester strips? Is plastic capable of withstanding the weight?
Thanks.

No, I will not carry this much weight
The reason i am asking is I want to understand what those plastic shoulder strap attachment clips and corresponding loops were designed to withstand. I had number of large bags ripped out when heavily packed and picked up (say from a luggage carousel etc.).
I assume TB is much better wrt reinforcements on these weak points, just want to get some idea about the design.

We bartack the shoulder strap attachment points, and the bartacks are stronger than rivets. Bartacks are reinforcing stitches that we use liberally in high stress areas on our bags: where shoulder straps or grab handles join the main body of the bag, where a critical seam ends and begins — anywhere necessary to make 100% sure the stitching on your bag never fails. The Yeoman Duffel has 14 bartacks. Not sure about "hidden polyester strips" -- do you have an example of that?

We tested the plastic shoulder strap attachment points themselves to have a combined maximum load of 520lbs.

So, between the bartacks, the strength of the fabric itself, and the load the plastic shoulder strap attachment points is able to hold... we'd end up with a bag that could be loaded so heavy that, long before any part of the bag would fail, a mere mortal wouldn't actually be able pick it up.

And I'm glad you asked these questions, in no small part because it gives me an excuse to post one of my favorite videos that we've ever made...

TOM BIHN: Materials Testing

[jessmakes]

Ummmm, that video is amazing.

[one2many]

Thank you Darcy for very detailed reply and for sharing the video. Nothing more required to address any type of bag performance concern

To answer your question, what I call "hidden polyester strips" (perhaps wrongly) is additional pieces of polyester sewn into a bag body (usually a leather ones) at the stress points of straps or handles attachments.

Thank you.

[tress29]

To answer your question, what I call "hidden polyester strips" (perhaps wrongly) is additional pieces of polyester sewn into a bag body (usually a leather ones) at the stress points of straps or handles attachments.

In cheaper bags, you won’t see that extra piece as it’s sewn between the outside of the bag and the liner. Until it tears!

[GrussGott]

We tested the plastic shoulder strap attachment points themselves to have a combined maximum load of 520lbs. ... we'd end up with a bag that could be loaded so heavy that, long before any part of the bag would fail, a mere mortal wouldn't actually be able pick it up.

BADARSE! This is my favorite post.

[one2many]

TB designs are as great as their team!
Thanks to Darcy and Kat, just ordered my LYD
This is 3 packs/bags bought in just few weeks

[Darcy]

TB designs are as great as their team!
Thanks to Darcy and Kat, just ordered my LYD
This is 3 packs/bags bought in just few weeks

Hope you love your Yeoman as much as I love the ones I have (see here, here and here) and thank you for your orders

[BWeaves]

That was a fun video.

[Moose]

Many years ago several of us were sent fabric swatches so we could preform torture tests. Try as I might I could barely get the surface of my swatch scratched, let alone wear a hole in it. Sure was fun trying though.

[organicfarmer]

This is likely the best thread to a question I have thought about for some time now.

Imagine a shop bag with each handle hanging on secure hooks to hold bag in a way making it held open. Now from whatever height required, drop a bowling ball into the bag. Which fails first? Does the fabric rip at point of contact to the bowling ball OR does the fabric rip along a seam OR does a seam break/tear apart?

[Darcy]

Many years ago several of us were sent fabric swatches so we could preform torture tests. Try as I might I could barely get the surface of my swatch scratched, let alone wear a hole in it. Sure was fun trying though.

I forgot about that! Hmm. @Moose want to try that again? Send me an email: darcy@tombihn.com

This is likely the best thread to a question I have thought about for some time now.

Imagine a shop bag with each handle hanging on secure hooks to hold bag in a way making it held open. Now from whatever height required, drop a bowling ball into the bag. Which fails first? Does the fabric rip at point of contact to the bowling ball OR does the fabric rip along a seam OR does a seam break/tear apart?

I like how you think. I'll hit a thrift store, pick up a bowling ball, and let you know.