Waterproof Triangle Frame Bag with Graded Fabrics
600D outside 420D inside 840D on the bottom where it matters
What It Is and Who It Is For
A frame triangle bag that uses three different fabric weights on purpose: 600D nylon outside, 420D inside and 840D on the bottom, each bonded to a TPU waterproof membrane, over a PP board interlayer. Seams are high-frequency welded and the closure is a waterproof one-way zip. The large is 40 by 23 by 6 cm at 276 grams; the small is 30 by 19 by 6 cm at 180 grams.
Why Buyers Choose This Part
Three fabric weights, each where it is needed
840D on the bottom where wear happens, 600D on the outside for abrasion, 420D inside to save weight. That is a considered build, not a single-fabric shortcut.
Genuinely sealed
Welded seams, a TPU membrane on all three panels and a waterproof one-way zip.
276 grams for 40 centimetres
The largest bag in the frame range and still under 300 grams.
Problems It Solves
- Frame bags wear through on the bottom first, where the bottle cage and road spray hit
- One fabric weight throughout means either a heavy bag or a fragile one
- Large frame bags flop and rub when only half loaded
Who It Is For
- Bikepackers carrying a full day of kit
- Commuters replacing a backpack
- Brands offering a frame bag in two sizes
Application Scenarios
- Bikepacking and multi-day touring
- Commuting without a backpack
- Carrying a pump, tools, layers and food inside the frame
Technical Features
- 600D outside, 420D inside, 840D bottom, all TPU laminated
- PP board interlayer
- Segmented hook-and-loop straps
- Waterproof one-way zip
- High-frequency welded seams
- Large 276 g and small 180 g
Published Specification
| Outside material | 600D nylon + waterproof TPU membrane |
|---|---|
| Inside material | 420D nylon + waterproof TPU membrane |
| Bottom material | 840D nylon + waterproof TPU membrane |
| Interlayer | PP board |
| Fastening | Segmented hook-and-loop fastener |
| Zip | Waterproof one-way zip |
| Size large | 40 x 23 x 6 cm, 276 g |
| Size small | 30 x 19 x 6 cm, 180 g |
| Craft | High frequency welding |
Every figure in this table is transcribed from the VALORIDER catalogue specification for this product. Nothing has been estimated.
Product Views
Compared With the Alternatives
This holds far more than the Frame Cross Bag but sits lower and is slower to reach while riding. Against the sewn Triangle Bag it is waterproof rather than water resistant and uses three graded fabrics instead of PU and EVA.
Customisation and Manufacturing
Welded bags are built on the high-frequency welding line, where the branding has to be applied without breaking the seal. That usually means a welded or heat transferred mark rather than stitching, because a stitched label would put needle holes back into a bag built to avoid them.
- Welded or heat transferred branding, never stitched through the membrane
- Fabric denier and membrane specified per panel
- Reflective placement set at sampling
- Polybag or colour box packing
Fitting and Living With It
Step 1
Measure your front triangle before choosing between the 40 cm and 30 cm sizes.
Step 2
Load heavy items low and towards the bottom bracket so handling stays neutral.
Step 3
Check bottle cage clearance. A full frame bag often means moving to a side-load cage.
Step 4
Close the one-way zip fully and keep the zip track clean of grit.
Others in This Part of the Catalogue
Bicycle Waterproof Tail Bag 840D Nylon with Welded Seams
High-frequency welded 840D nylon that is sealed rather than water resistant
View specification
Waterproof Frame Cross Bag in Two Sizes
600D nylon welded shut in a 125 gram and a 90 gram size
View specification
Waterproof Bike Pannier 27 L with Quick Release Clip System
27 litres on a clip system that attaches and detaches in seconds
View specification
Bicycle Phone Holder Bag with Rotating Base and Headphone Port
A 360 degree base a sunshade and somewhere to put your passport
View specificationGuides That Cover This Product
Why a Sewn Bike Bag Is Not Waterproof and a Welded One Is
Every stitch in a seam is a hole. High frequency welding removes them. Here is how to tell the two...
Read the guideDenier Explained 210D 420D 600D and 840D in Bike Luggage
Four numbers cover almost all bicycle luggage fabric. Here is what each one is for and why a good bag uses...
Read the guideWaterproof Triangle Frame Bag with Graded Fabrics Questions
Will it fit my frame?
Can I still use a bottle cage?
Why three different fabrics?
Is the 6 cm width fixed?
Quote Waterproof Triangle Frame Bag with Graded Fabrics
Send the quantity, the destination port and any branding requirement. We will come back with the questions that decide the price.