A medium sized, box-shaped backpack with a cane pouch and zipper pockets on the outside. It is dark navy with black trim, webbing, velcro, and has white ring-shaped zipper pulls. The outer pockets have colorful Braille tactile patches which are removable by velcro.
Front view of the Performance Block Medium S-Series featuring the new Cane pouch with a zipper and a metal carabiner attached to the front of the backpack. It has the matching color of the bag and a white zipper ring.
Back view of the Performance Block Medium S-Series, showing the backpack strap that are padded with air mesh. They have 3 D rings each on them, and a Braille character keychain is attached. There is a Cane Pouch and a removable padded waist strap next to the bag, and they both have reflective tags on them.
An arctic White Performance Block Medium S-Series has black trim and black webbing along the front. Both velcro strips are black with the FEELDOM Logo Braille patch on the front. It has black zipper ring pulls on the lid and the pockets.
Back view of the White Performance Block Medium S-series showing the White cane pouch clipped to the strap D-ring with the carabiner, and the waist strap attached using two clip buckles on each side. The handle is a smooth nylon band along the top center of the bag.
Inside top view of the Arctic White Performance Block bag, showing an ivory white lining and interior. The zipper pouch is black with a black zipper ring, and there is a large mesh zipper pouch on the inside of the lid. There is a padded laptop compartment along the back side and it has a velcro divider across the center of the inner compartment which is also ivory white.
Performance Block / S-Series MEDIUM
Front view of the Forest Green Performance Block Medium S-Series. It has white zipper ring pulls on all the pockets. The lid has a double ring zipper, and it zips open like a box-top. It has 3 lines of black Molle webbing along the front.
A Forest Green Cane Pouch with a zipper down the middle and a white Zipper ring pull. It has a metal S-shaped carabiner attached to the top loop, and there is an adjustable band with snaps on it along the top of the case. It has an orange lining and a reflective tab on it.
Close up details of the Cane Pouch Z, which is included with the S-Series backpacks, in the matching color of the bag. There are belt loops, molle webbing, and a rotating stabilizer clip along the bottom of the case. There is a D ring and a Carabiner towards the top of the case and a detachable handle / band with snaps on it.
Close up details of the Performance Block Medium S-Series pocket structures. There is a mesh zipper pouch on both the inside and outside of the lid, a small zipper pouch inside, and a large padded laptop compartment inside.  Both bottom access points open to the side of the main compartment, and there are two larger zipper pouches on either side of the bag.
Close up of the upper side pocket open, showing a bright orange lining. There is a cellphone, pen and pad of paper inside.  It is padded and insulated to protect the contents of the pouch.
Close up detail of the padded laptop compartment in the Medium S-Series. It is a bright orange lining, and can hold up to 18.5 inch laptop. If the laptop is large or thick, the center divider can be released and curved or adjusted to allow the computer to fit comfortably in the compartment.
Details of the bottom of the bag showing 4 large rubber feet with bumpy texture for grip , stability, and protection from dirt and water.
Performance Block Medium is about 6 inches thick, with an upper side pocket and lower access point (double zipper) to the inner compartment. Each access point has a Braille tactile patch. This one shows a blue cube with a number 4 digit and braille, and a yellow nautilus shell with the number 3. The cane pouch is attached to the front molle webbing
Top view of the lid showing an outer zipper pouch with a bright yellow raincover folded up inside. It is made of water proof nylon and has a blind dog character design on the front, which is glow in the dark.
The bright yellow waterproof raincover is included. It stretches over the whole front and sides of the bag. The center has a white design that is glow in the dark, featuring a FEELDOM logo in a white triangle and above it, a lineup of  dog characters using various assistive devices, including a white cane.
Side view detail of the White Performance Block Medium with an ivory lining inside the pocket. The pocket is big enough for a cell phone and other things like snacks or personal items. The bag has black straps and black zippers.
The bag is in the dark, and the Performance Block FEELDOM Logo Braille patch and the P-Block character keychain are glowing in the dark.
Close up of the Braille tactile patch set of 5. They are black rubber with a raised design in 4 colors. The designs are #1 Moon, #2 Birds, #3 Nautilus, #4 Cube, and the FEELDOM Logo patch . Each one has a braille and number in it. They are velcro on the back.
The details of the P-Block Braille character keychain with the FEELDOM "Seoul" logo and in braille. P-Block is a dog character who is super cool. He wears sunglasses and uses a white cane.

Performance Block / S-Series MEDIUM

Regular price $349.00 $299.00 Unit price per



The Second-biggest and Baddest (and Newest) of our Low-Vision Modular Backpacks, now with some sweet new upgrade details.

What's New?

  • 3 More Zipper compartments
  • Padded Laptop pouch up to 18.5"
  • New Zippered Cane Pouch with carabiner included.
  • New Glow-in-the-Dark Rain Cover included. High visibility Yellow with design.
  • Removable Belt:  Air-mesh-padded, low profile, contoured with reflector detail.
  • Removable inner base panel for easier cleaning.
  • Compatible with:

    TEKNO Pouch, QUIK-E Pouch, and MOOL Bottle Holster (Sold separately)

MEDIUM, with padded laptop compartment up to 18.5"

MAIN COMPARTMENT with removable divider creating an upper and lower chamber.  Upper chamber access through zippered flip-top lid.

ONLY LOWER chamber has Left / Right side access by way of small zippered doorways.  Double zipper rings are lockable. (Lock not included.)

UPPER Left and Right sides have padded pouches larger than a cell phone, accessible by a single ring zipper. They do not open up into the upper chamber.

Size:  H 18" x W 17" x D 6" / Weight: 4 lb / Capacity: 35 Liters

Includes Cane Pouch (also good for umbrellas!), Metal Carabiner, a Waterproof Rain Cover and Braille P-Block Character Keyfob that both glow in the dark. The Keyfob is writable on the back.

Dual-level design offers both-side-access to main compartment, which is easy to access while wearing (lower level only).  Inner compartment divider is removable if you prefer one large inner space. Divider can be adjusted to allow more room for larger laptops in the space.

Unique Design - Color-number-coded 5 tactile Braille design patches which can be placed anywhere on the bag to identify storage compartments. Our design concept was created to allow people with visual impairment to "feel" these wonderous images inspired by nature.

1. The Full MOON

2. BIRDS by M.C. Escher

3. The NAUTILUS revealing the Fibonacci Sequence

4. 3-D CUBE which is also an optical illusion

5. The Feeldom x Performance Block patch is white / glow-in-the dark.

Ultra Heavy-Duty specialty deluxe tactical backpack. Reinforced back, dual-levels, enourmous storage spaces. Accessible to visually impaired people because of the bright high-contrast linings and stable body construction.

Adjustable waist and chest straps for easy carry. Rigid and breathable back-cushion, padded straps allow for stable and comfortable carry in any situation. Premium High-visibility ring-zippers are easy to locate and use for mobility-limited individuals.

Perfect for athletic gear and daily necessities as well as travel, school or hiking. A great bag for visually-impaired persons, sighted persons and anyone in general who appreciates amazing quality and innovative design.

 Medium S-Series coming soon!

FEELDOM products are hand-crafted from premium materials only, with absolutely no corners cut on quality. We offer free shipping and returns as well as a 5-year Manufacturer's Warranty on all bags. Guaranteed to meet your standards of adventure, quality and stand up to heavy use over the years!