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Thanks!! No, I don't want to buy another pack. I do plan to wear a long sleeve sun protection shirt, I am very sun sensitive with skin cancer history. I think I will try wearing a light merino tank under my shirt and see if that helps.
You may want to experiment by taking an outdoor seat cushion with a hard plastic weave and attaching that to the back of the pack. That may give you the air flow you need and may be light enough and comfortable enough. It will be cheaper than a new pack and if it doesn't work at least you have a seat cushion.
On all three of mine (Gregory, Osprey, Z-Pack), they're all slightly different, and almost a hybrid system. The stays are either on the inside like a normal internal frame pack or in enclosed ribs of pack fabric, and the mesh attaches to either an extrusion or to the rib.
I agree. Suggesting that there is one simple, 'correct' solution to a problem with as many dimensions as this doesn't appear particularly helpful to me. Clothing, pack type and load, and most of all, the rate of effort one is making all influence whether your body produces more sweat than can be evaporated in the prevailing ambient conditions. In the circumstances where @lmsundaze is less than a month away from leaving, one might infer that any major equipment and clothing decisions have already been made. While there might be some new, last minute, purchases that she is prepared to make, I expect good advice needs to be framed in the context that she is going with what she has already.
We are clearly going to differ on this. I would have considered all of the trampoline frame models from these makers as external frames. Attaching the bag to the frame with a strip of fabric, or in other designs, in pouches at the corners held under tension by the frame, does not seem to me to alter the fundamentals that the frame is outside the body of the pack.
Hi! I have the same issue. I've found that items like cooling ties around my wrists (yes, wrists) seem to help cool me down overall. There's also the idea of an evaporative cooling towel attached to the back of the bra...this also helps cool me down. Then of course, there's always the option of considering an actual Cooling Vest or shirt. Just my 2 cents worth.
I am using ULA Ohm 2.0. I mostly really like it except my back gets hot. It has a lot of good features and is very light.
I am impressed with 10 lbs! I have Osprey Sirrus 36L - carry ~ 16 lbs, air suspension that works. But you have already stated not an option to buy new. But perhaps a merino wool base layer for $25? My new fav piece of gear.
Wow, just wow. You go, girl!
I too am impressed! WOW
What I meant by "external frame" was something like this, where there is a full and stable exterior frame onto which is attached the bag itself. I grew up with these, and they do a reasonably good job with back ventilation. However, compared to an internal frame pack, they are prone to shifting, aren't nearly as comfortable, and they tend to be heavy unless they are (as in the case of this image) minimizing fabric by assuming one attaches to the outside frame with straps.
Interesting idea! (I know what they are
)
Me too -- with this pack the sweat is uncomfortable but with my old Gregory I was having back pain. I just returned from today's walk, took Nidarosa's advice, wore merino wool shirt and made the straps real lose. My pack is light enough I can carry it that way. I didn't feel that bad, but of course soaking wet. Next time will try Gold Bond as Rebekah suggested. Thanks so much to everyone on this forum!
One thing I do that helps a lot is periodically let the pack straps slide back down my arms to create a large gap between the pack and my back, kind of "hinging" the pack back on the waist belt, thus letting the wind and sun dry off my sweaty back. I can do this without stopping and let the packstraps kind of hang on my elbows as I walk. Works and feels great, if it may look bit strange. I learned this backcountry skiing, where it is imperative to stay dry.
Having spent some months in deserts as a soldier (Marine) I have never heard of wearing heavy coats in that extreme heat and sun. Sure, the sweat won't evaporate, but you will sweat more under the heavy coat. That would actually be an invitation to death. There is just no way we would have entertained that concept. If they did that in the 1940's it was based on a misconception.
Wouldn't this by your definition then mean that every pack is an external frame pack? The earlier internal frame packs had the larger aluminum bent frames inside the pack itself but just a pad and the thin material of the bag separating the back and pack. Now they have progressed and use lightweight wires, rods, leafs, stays, etc but fundamentally, they are still 'inside' the pack with only padding and a thin piece of material between the back and pack. My earliest external packs had the entire frame and harness outside and simply hung/attached the bag to that frame with nothing inside the pack. We dual-purposed those pack by removing the bag altogether and carried heavy items in the bush by tying them directly to the external frame.
Yes, desert cultures do wear thin, loose fitting clothing, but the clothes have no insulating properties at all (we all bought some to bring home as souvenirs). Designed to cover one from the sun's rays yet loose and breezy.
All tech fabrics are going to "sour" over time, even with good washing machines and really hot water (both a luxury on the Camino). The only way that I've found to eliminate the sour, "funky" smell is an extended soak in an enzymatic cleaner from time to time, which can break down the proteins and bacteria that accumulate to produce the sour smell. In the US, we have Resolve / Spray and Wash, which does a really good job.
Did you happen to purchase your pack from REI? If so no problem returning it for a different model and manufacturer (and the end roof season clearance is going on now too I think)
Reminds me of what I was brought up with. "Horses sweat, men perspire and ladies glow"
Thanks Great Dane, no REI where I live. I am going to "glow" with it
I know Osprey use the term 'peripheral frame', and Deuter describe those packs that do have an internal frame as such, but I have never seen a trampoline suspension system referred to as an internal frame. I would be interested if you could refer me where you think they have. The distinction is one of design, not semantics!
Hi Doug - are there a set of internationally recognized standards that state trampoline systems are external frames?
Why? It really is about the common English language meanings of the words. I have four packs in various sizes with trampoline suspension systems, from Salewa, Deuter and North Face. I can tell you that all the frames are external to the bag itself - I can see the frames from outside the pack. I have both internally framed packs and an older external ladder frame pack as well. I consider it an internal frame if I have to open up the bag to get access to the frame. It isn't any more complicated than that - it is clearly inside the bag, ie internal, if I have to get at the frame from the inside of the bag.
My 'why' is because I have a different point of view about this topic but am interested in learning more. In the past I have noticed when some Posters have a different point of view as another Poster they ask them if they have any official documentation that validates their stance and I think this is a smart approach as there certainly may be such documentation that exists. In this case I have looked at a variety of classification societies and patents but can find nothing conclusive either way so was simply curious to know if there was any such that you knew of that the would imply the designers and manufactures of these various packs were using improper terminology.
I'm sorry that plain English doesn't work, but you might want to read the Wikipedia article at https://en.m.wikipedia.org/wiki/Backpack#External_frame_packs. It's probably vague enough to satisfy both camps in this discussion. In the meantime I will continue to use the simple test that if I don't have to open the bag to see the frame, it's an external frame.
My language skills are just fine. I just have a different set of definitions. Anyway, moving on...
You are right, but the mesh panel is attached to the frame and often forms an integral unit with it.
I did a check of the local outdoor retailers today. There seem to be four design variants:
Good idea @imsundaze I only wear merino next to my skin. I’ve done both hot and cool caminos and it’s great. A 150gm base layer (¾ sleeve) is fine in summer. You can get a size bigger than normal too for a bit more freedom against your body.
Thanks! Yes I had much less problem on the Camino than training, but I think because the weather was very cool in April and May when I walked. If I go again, it will be in the spring the next time too.
I use an Osprey Tempest 30 It has a mesh air pocket between your back and the pack to allow air to circulate. It works quite well. My daughter uses a Decathlon Forclaz 30 air which is similar (and about half the price!!!) However if you've already purchased a pack and cannot change it, I don't have any words of wisdom. Hope someone else can help.
I’d suggest light weight merino wool shirt and change it half way through your day and hang it off your pack to dry…which it will very quickly. Even the “air flow vent” backpacks will make your back sweat, although maybe not so much.
Nice thought. Note you are replying to a thread that is several years old. The OP has walked the CF and CP since then, but some newer members may get benefit from this thread being re-activated.
Thanks…I realized that after I posted…
Yep, it’s hot, you sweat , generally dries fairly quick
wear a lycra base layer top, it wikes the sweat away, it feels cold on putting it on but soon warms up. I wear a lycra top as well - check out cycling kit -
You are responding to a post from 2016 by a member who hasn't been on the forum since Jun this year. That said, the advice you are offering is more general in nature, and might be useful to someone now this quite old thread has been re-activated.
I had not thought of sweat wetting the backpack....With the material used today, is that a real problem?
