Enter your lens dimensions to design your own ultralight lens bag! Price increases with length to reflect custom material cost.
Made to order. Lead time: 2 weeks standard – faster on request, just write to me.
Shipping: Germany 2–3 days, EU 3–11 days, international 5–16 days.
Each Lens Bag is custom-made to fit your specific lens. Carry extra lenses that don't fit in your main camera bag, or pair a smaller camera bag with separate Lens Bags for a flexible setup. Price scales with length to reflect the actual material cost.
Rolltop opening with taped seams, waterproof shell, Dyneema liner, 4–8 mm padding. Same construction as my camera bags, just round.
The quick access magnetic lid stays closed while you walk and gives you single-handed access when you want to pull out the lens.
Two strips of attachment points let you mount it on a backpack shoulder strap or on a hip belt. The padding also makes it safe to carry inside your main pack alongside other gear.
“The bag is perfect. Very good fit and protection. I use it while hiking to pack the lens in my backpack. I don't use a photography backpack so I needed something I could put in my bag and not worry about it.”
Kjell Berglund ·Custom Lens Bag ·Nov 2025
Every Lens Bag is custom-made to fit your specific lens. There is no standard size – the pattern starts from the dimensions you enter at order time.
How to measure: the full length of your lens with both caps attached, and the diameter at its widest point. I draft the pattern as a tube from these two numbers. The bag has a fixed diameter across its full length, so a wide lens hood will result in a loose fit at the lens body.
Pricing: the base price covers the standard build; an additional length surcharge of €1 per centimeter reflects the added material cost for longer bags.
| Lens dimensions (length × diameter) | Build | Bag weight |
|---|---|---|
| 15 × 8.5 cm | EPLX 200, 4 mm | 40 g |
| 18 × 8.2 cm | EPLX 200, 4 mm | 45 g |
| 21 × 9.5 cm | EPLX 200, 4 mm | 52 g |
| 22 × 10 cm | Ultra 200X, 8 mm | 89 g |
Every Lens Bag is handmade and weights vary by a few grams. Because each is sized to your lens, total weight depends mostly on lens length. A few sample weights above.
Your choice of Ecopak EPLX 400 (eco-friendly and my standard), X-Pac RX30 (adds color range at a weight increase), or my premium ultralight fabrics Ultra 100X/200X. These Ultra fabrics are built with super tear- and abrasion-resistant UHMWPE fibers, which means they are best-in-class for their weight.
4 mm Evazote EV50 closed-cell foam – my ultralight standard for hiking use. Step up to 8 mm if you want more protection for longer or heavier glass.
Dyneema Composite Fabric CT2K.18, 34 gsm. Colors may vary depending on availability – white, black, or red.
Designed for three rolls and thus forms a strong barrier against water entry. This is superior to camera bags with zippers (even if the zip keeps water out, the zipper seams that can’t really be taped let water in). Note: While the rolltop provides excellent protection against rain, it’s not designed for submersion.
The external shell fabric, the internal liner, and the padding are individually waterproof. To make the best use of this, I’ve designed my camera bags with as few seams as possible. All remaining seams (except for the hem that’s hidden in the rolls) are taped to prevent water sneaking through the stitch holes.
Most camera bags sew the shell and liner together around the padding. That makes properly taping the bag impossible. Instead, I tape the liner directly to the inside of the shell. This eliminates extra seams and further improves water protection thanks to my waterproof liner fabric.
This makes these bags as waterproof as possible without much heavier fabrics and industrial welding equipment. It doesn’t mean 100% waterproof, since I make all bags by hand and seam taping can sometimes trap tiny air bubbles. But with two layers of waterproof fabrics and taped seams (liner + shell fabric), it gets as close to perfect as possible.
Gives you extra accessible space. Great for phones, snacks, maps, lens caps and more. Made of durable UltraStretch with UHMWPE fibers. Wraps around the full bag.
Provides better balance as a shoulder sling lens bag. You could also use these as additional connection options for extra security. They are reinforced with extra fabric from the inside.
This adds a small loop to the inside of the hem at the top of the rolltop. You can use this to tie your lens to the bag to catch it in case of a drop.
Adds extra cushioning and breathability on the side of the bag that touches your body. Especially useful if you mainly use a waist belt that pulls the bag close.
Each bag has two full rows of cord loops for lots of attachment possibilities. Carry your bag clipped to your shoulder straps or hip belt, wear it as a shoulder sling or waist bag, tie it to your bike or figure out your own carrying solution.
Available as an add-on: two small metal carabiners to clip your bag to your backpack’s daisy chain. Note: not suited for climbing.
Adjustable webbing straps that you can attach to the rows of cord loops. Feed your hip belt through the webbing loops that this creates and cinch them tight, or directly feed the straps through attachment points on your hip belt to additionally secure your bag.
Carabiner on one end, webbing loop on the other. Feed the webbing through a daisy chain or D-ring on your backpack’s shoulder strap, then pass the carabiner end back through the webbing loop and pull tight – the bag now clips securely to your shoulder strap.
Adjustable waist belt with a magnetic Fidlock buckle. You can also use this as a simple shoulder sling strap.
A dedicated ultralight sling strap with 4 mm padding to carry the bag on its own, without a backpack.
The included carabiners are accessories for clipping the bag to backpack hardware. They are not climbing equipment, fall-arrest hardware, or rated for any human load. Do not use them to secure people, suspend loads, or in any situation where carabiner failure could cause injury.
The carabiners, the magnetic buckle on the Fidlock strap, and any other small accessories included with the bag are small enough to be swallowed. Keep them and the bag out of reach of children under 3 years. If a child swallows a part, seek medical help immediately.
The bag contains permanent magnets in the rolltop closure, and on the Fidlock strap in the buckle. If you wear a pacemaker, defibrillator, insulin pump, or another active implantable medical device, keep the magnets at least 15 cm from the device and follow your device manufacturer's guidance.
Magnets can damage or erase magnetic-stripe cards, mechanical watches, hearing aids, and unshielded hard drives. Keep them clear of the closure area.
Keep away from infants and small children. If a magnet works loose and is swallowed – particularly together with another magnet or metal object – it can cause serious internal injury. Stop using the bag immediately if any magnet becomes detached and contact me for repair.
This bag is designed for camera and gear transport. It is not a toy, child carrier, or pet carrier, and the straps are not certified for any human load.
Long sling and waist straps can be a strangulation hazard. Do not place straps around the neck of infants or small children, and store the bag out of their reach when not in use.
The shell fabric and seams are waterproof, but the bag is not a personal flotation device. Do not rely on it for buoyancy in or on water.
Spot-clean with a damp cloth and air-dry. Do not machine wash, tumble dry, iron, or dry-clean – these damage the taped seams and the waterproof film on the Dyneema Composite Fabric. Avoid prolonged direct sunlight; UV light degrades DCF over time. Store dry. Inspect seams, magnets, and carabiners before each use; if you find loose stitching, a detached magnet, or a bent gate on a carabiner, stop using the bag and contact me.
Dithmarscher Str. 48, 22049 Hamburg, Germany
jacob@leichtmut.de
Every Lens Bag is built to your lens. There is no standard size – the pattern starts from the dimensions you enter. Everything else customizes the build around your preferences.
Measure lens length (with caps) and widest diameter. Price scales with length.
4 mm (standard) or 8 mm (for longer, heavier glass).
EPLX 400 (standard), X-Pac RX30 (more colors), or Ultra 100X/200X (lightest and strongest).
RX30 has the widest palette; premium ultralight fabrics in black, white or gray.
External stretch pocket, security loop, body-side mesh. Optional.
Add carabiners, shoulder or hip-belt connectors, sling, or waist belt.
I'm Jacob – a hiker, photographer, and maker who builds these bags for a living. I like to hike in rainy countries like Scotland or Norway, and I've refined my bags to hold up in their wet conditions over hundreds of kilometers on-trail, plus countless hours at the sewing machine.
I will draft an individual pattern for your bag to make sure it fits your camera perfectly. I will use the fabrics and colors you pick, as well as exactly those features you decide you need for your adventures.
Almost every Custom Lens Bag I build is slightly different from the last one. That's the part I like most, so I'm very excited to see what you come up with!
Configure your Custom Lens Bag – size, fabric, color, padding, extras, attachment. I'll build it for your camera and ship in two weeks.
Configure your Custom Lens Bag