Bike saddle bags · OEM & private label

Bike saddle bags under-seat bags and seat packs made for your brand

The saddle bag is where riders keep a tube, levers and a mini pump — a small, high-margin accessory that sells in every channel. TandemForge supplies under-seat saddle bags, waterproof welded bags and bikepacking seat packs in nylon, polyester and TPU-coated fabrics, with strap or quick-release mounts, reflective details and your logo. See all carrying accessories.

  • Small, medium and expandable under-seat bags
  • Waterproof TPU-coated, welded-seam options
  • Hook-and-loop straps or quick-release clip
  • Reflective print, light loop, custom logo
Placeholder illustration · under-seat bike saddle bags
Placeholder illustration — not a product photo. Real product images to be added.

Saddle bag types

  • Small under-seat bags — for a tube, levers, patches and a multi-tool.
  • Medium and expandable bags — zip-out gusset for a jacket or phone.
  • Waterproof bags — TPU-coated fabric with welded seams and water-resistant zips or roll-top closures; water resistance specified per SKU.
  • Bikepacking seat packs — large roll-top packs with stabilizing straps for touring and gravel.
  • Repair-kit bundles — bag + tools packed together; see bike tools.

Fabrics and mounting

Common shells are nylon or polyester (e.g. 600D / 1680D), TPU-coated or PU-coated fabrics, and EVA-molded shells for rigid bags. Mounts are hook-and-loop straps around the saddle rails and seatpost, or a quick-release clip. Reflective print and a rear-light loop add visibility. Materials are compared in the specs guide.

Branding and packaging

Custom fabric colors, woven labels, rubber patches, screen or reflective print, branded zip pullers, and hang tags, header cards or retail boxes; FBA labeling available. Mixed orders with baskets and pumps go through wholesale.

Typical saddle bag specification (configurable)

ItemUnder-seat bagWaterproof / bikepacking
FabricNylon or polyester (e.g. 600D / 1680D)TPU-coated fabric, welded seams
ClosureZip, expandable gussetRoll-top or water-resistant zip
MountHook-and-loop straps or quick-release clipRail straps + seatpost strap
Formats buyers ask forSmall / medium / expandableMedium to large seat packs
VisibilityReflective print, light loopReflective print, light loop
BrandingWoven label, patch, print, hang tagPrint, label, box

Common formats for quotation — not ratings. Water resistance is specified per SKU and confirmed with documentation per order.

Customization options

Fabric & color

Denier, coating and color to your range.

Mount

Strap or quick-release, light loop.

Logo

Woven label, rubber patch, screen or reflective print.

Packaging

Hang tag, header card, box or kit bundle.

No certifications, ratings or test data claimed. We describe what each product is made of, how it works and how it can be customized. We do not display certification marks or security ratings, publish test data, factory capacity or customer cases on this site. Test reports and certification documentation can be provided or arranged per order for the buyer’s market, as the brand owner requires. Bike helmets and lithium e-bike batteries are regulated products: the applicable standard (for example CPSC 16 CFR 1203 / EN 1078 for helmets; UN 38.3 transport testing and UL 2271 / UL 2849 / EN 50604-1 for batteries) is confirmed per SKU and per order with the supplier and an accredited lab before production. Labeling and claims are the brand owner’s responsibility.

Frequently asked questions

Are your saddle bags waterproof?

We offer water-resistant and TPU-welded options; water resistance is specified per SKU and confirmed with documentation per order.

Can you pack a repair kit inside the bag?

Yes — tire levers, patches, a multi-tool and a mini pump can be packed in the bag under one barcode.

Do you make large bikepacking seat packs?

Yes, roll-top seat packs with stabilizing straps are part of the range.

What is the MOQ and lead time?

Both are quoted per SKU. MOQ depends mainly on the platform (an existing design vs. a new mold), color, logo method, packaging and the documentation your market needs; lead time depends on customization, documentation and season. Send your quantities and we confirm both on the quotation — see also the packaging & MOQ section of our specs guide.

Are your products certified or tested?

We do not display certification marks, security ratings or test data on this site. Test reports and certification documentation can be provided or arranged per order for your market, as your brand requires: tell us the destination market, sales channel and the standard or document your retailer or marketplace asks for, and the quotation confirms which documentation applies to each SKU and how it is obtained (existing reports for a platform, or testing arranged with a third-party laboratory). See the export compliance section of our specs guide or ask on the inquiry form.

Related pages

Private label saddle bags?

Send sizes, fabric, colors, logo method and quantities — we reply with samples and a quote.