Brooks England D-Shaped Bike Saddle Tool Bag - Waterproof Cycling Accessories for Road & Mountain Bikes | Perfect for Commuting, Touring & Bike Maintenance

It looks good and works well. This is my favorite saddle bag by far though it isn't without problems (due to the 100+ year old design).This is really a bag and a bag holder. There is a removable rectangular zippered bag which fits tightly into an outer sleeve that is attached to your saddle via hard to remove buckles. The zippered bag is held inside the sleeve by friction and also by a small leather tab that is anchored to a metal stud on the outside of the sleeve.It is also clearly a bit of an extravagant "bike bling" purchase. There are bags for 1/5th the cost that are just as good if not better from a pure function perspective. This bag simply looks cool and is a brand name that people like.The Good:1) It holds quite a bit of stuff. Mine usually holds a spare tube, tube repair kit, Co2 cartridge, and an emergency snack. On commute rides it holds a tube repair kit, Co2 cartridge, iphone, keys, wallet, and seat cover.2) It is very easy to detach and take the bag portion with you, so it sort of becomes an instant clutch/purse/man-carry-all once removed from the bike. Removing the bag portion takes less than two seconds. It is this one feature that functionally differentiates it from other cheaper bags IMO.3) It is very secure. The bag portion has remained securely in place even on rough roads that have bounced my water bottles out of their cages. I have zero concern about the bag coming out of it's sleeve.3) Old school cred (100+ year old design!) This bag attracts attention big time among other bicycle enthusiasts, not all of that attention is necessarily good but most of it is.4) It perfectly matches other Brooks products in the same color.5) Being leather it ages well and gets better over time.6) It isn't truly water proof but it is very rain resistant in my experience. The sleeve design means that most of it is completely covered in two thick layers of leather with only the two ends exposed with a zipper showing. I live in the high desert though so it isn't like I'm slogging around through wet Seattle and your experience may vary.7) The leather and stitching seem to be of very high quality. They meet my expectations for Brooks quality in the leather department, even if they aren't made in Britain.The Bad:1) It swings/sways significantly. It is secured only by two loops on the top (it is a 100+ year old design). These ideally go through bag loops on a saddle designed for accommodating bags like this (though it can work on "regular" saddles too). The byproduct of hanging from two loops is that it swings. This causes two problems: 1A) The buckles will, depending on how you've secured it, bang against the saddle rails or post which makes some noise. This is easily fixed by double looping the straps through the buckles. 1B) What is a bigger deal is that the bag itself will hit the back of my thighs when it really gets swinging. This I got used to rather quickly and it only happens intermittently. After the first month on the bike I didn't notice this at all anymore.2) You can't access the bag without removing it from the sleeve. The bag is very easy to remove so this isn't much of a problem, however it is a two handed affair so you can't easily hold anything else while you do it.3) The sleeve attaches rather securely to the saddle as the buckles are a pain in the @ss to remove. If you like to switch between different types of bags often this bag will annoy you. I rarely feel the need to switch bags though, only if I go on a very remote century ride where I need to carry all my own water and food as there will be no stores at all.4) All newer Brooks saddles with bag loops have very sharp edges on the loops (Brooks has confirmed this with me via e-mail) and hence the metal saddle loops will cut through the leather straps on this bag over time. Brooks suggested to me that I cushion the loops on my Brooks Team Pro Titanium saddle with tape to avoid cutting the bag straps - which is a ridiculous thing to ask IMO. So this product doesn't really work all that well with new Brooks saddles unless you tape the loops, which is weird and unacceptable IMO but that is really a problem with the saddle and not the bag.5) Be aware that the bag hangs at an angle. All the pictures typically show the bag sitting on a flat surface, in reality when attached to a saddle the flat "front" that shows the Brooks label will be facing mostly downward toward the rear tire. Not a big deal, but something to be aware of as this is largely a bling purchase. I've posted a picture that shows how it hangs (and how it looks with other Brooks products).