What's the maximum weight that it can hold?

Not sure off weight capacity although for 8 days I had it totally stuffed

Can you fit a pair of jeans and a shirt in the bag?

Yes there is sufficient space for a pair of clothes. I typically put my dress shoes and my lunch into the bag which is probably the extent of its capacity.

Will it fit a usgi sleep system in it ?

I do not know the size of the usgi sleep system. Check out the volume of the bag you are looking at. I do not have the bag with me now to measure it. It is very large though.

Any funny feelings when riding a road bike with a fully loaded bag ?, Balance issues ?, Other ?

Haven't yet had this bag on my road (gravel) bike...only on my mt bike. That said, its quickly apparent you have more weight up HIGH on the bike (to be fair I also had a handlebar bag and a top-tube bag...so I was carrying about 25 extra pounds total)...when you first start rolling you cant help but notice the extra weight, and how high-centered you now are (as in, a little slip of the front wheel and you would be down before you knew what happened). So its all about being smooth and balance...kind of like on rollers (where one slip can be disaster). Quite honestly it doesn't take long and you can easily forget about how heavy your bike is...you do want to TRY to put your heaviest stuff as low in the bag as possible (I keep my jet-boil down near the very bottom). Its a GREAT BAG, enjoy the ride!

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ROCKBROS Bike Saddle Bag Waterproof Bikepacking Bag 15L Bicycle Seat Bag | Large Capacity Bike Seat Post Bag For Road Mountain Bikes, Bicycle Seat Pack With Reflective Stripes, Easy Installation

Product ID: 56074490

Details

Color
Max 14L
Size
Max 14L
Brand
ROCKBROS
Material
600D TPU Film
Vehicle Service Type
Bicycle

🎒14L adjustable capacity

💧3-layer waterproof tech

🔒Tool-free secure buckle

$196.98

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚴‍♂️ Ride smart, pack smart—never leave essentials behind!

SAFETY FIRST - Reflective straps boost your night visibility, turning heads and keeping you safe on late rides.
BUILT TO PROTECT - Steel-reinforced frame maintains shape and shields your essentials from impact and extrusion.
CUSTOMIZABLE CAPACITY - Roll-top design lets you expand or compress up to 14L—one bag, endless possibilities.
EFFORTLESS INSTALLATION - No tools needed—quickly strap and secure under any bike seat for a snug fit.
WEATHERPROOF DURABILITY - Composite 3-layer waterproof material keeps gear dry and cleans easily with a wipe.

The ROCKBROS Bike Saddle Bag is a versatile 14L waterproof bikepacking seat bag crafted from durable 600D Nylon with TPU film. Featuring an adjustable roll-top closure, it adapts to your storage needs while its steel-reinforced frame protects contents. Easy to install with tool-free buckles and equipped with reflective straps for enhanced night safety, this bag is perfect for road, mountain, BMX, and dirt bikes, ensuring your gear stays dry and secure on every ride.

Specifications

ASIN	B076CC6VM1
Automotive Fit Type	Universal Fit
Best Sellers Rank	#146,814 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #72 in Bike Seat Packs
Brand	ROCKBROS
Brand Name	ROCKBROS
Capacity	14 liters
Closure Type	Buckle
Color	Max 14L
Compatible with Vehicle Type	Bicycle
Customer Reviews	4.3 out of 5 stars 401 Reviews
Handle Type	Web Handle
Item Dimensions L x W x H	30.91"L x 14.57"W x 5.91"H
Item Weight	16 ounces
Manufacturer	ROCK BROS
Manufacturer Part Number	AS-012
Material	600D Nylon+Waterproof TPU Film
Material Type	600D Nylon+Waterproof TPU Film
Model Number	AS-012
Mounting Type	Seat Mount
Number of Compartments	1
Pattern	Solid
Product Dimensions	30.91"L x 14.57"W x 5.91"H
Shell Type	Soft
Size	Max 14L
Strap Type	Adjustable
Style Name	Sporty
UPC	658126745406
Vehicle Service Type	Bicycle

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