“Hard cases are heavy and a pain, but I’m worried a soft case won’t protect my
.” This is the “answer” a specialty used instrument store has provided to this long-standing dilemma faced by guitarists.
At Advance Guitars, we handle numerous vintage guitars and used instruments every day. This also means we’ve seen “countless used cases.”
Where do they tend to break? What causes the most wear and tear? Our staff, who know the “reality” of cases used in the field inside and out, planned and developed from scratch “the case we truly want to use ourselves” and “the case we can wholeheartedly recommend to our customers.”
Packed with only the “features” and “protection” you truly need, the “hundred HSC-A II” is the definitive gig bag for acoustic guitars.
Key Features of the HSC Series!
1. It’s incredibly light—weighing in at just about 1.9 kg.
Hard cases go without saying, but
even gig bags can weigh around 3 kg when prioritizing protection.
Once you switch to this one, you’re sure to be amazed by how light it is.

2. It’s not just about lightness—safety is also a top priority
“Lightweight” doesn’t mean “unprotected.” The body is securely protected by 20mm-thick cushioning, while the neck is firmly held in place by an extra-thick 40mm neck pillow. It protects your precious acoustic guitar from accidental drops or impacts.


3. The neck pillow is removable!
You can adjust the position of the pillow to fit the size of the headstock or the guitar body.


4. Comes with Velcro for secure attachment
It holds the guitar body securely in place.

5. The top and bottom internal cushions are also removable!
Please adjust these to fit the size and shape of your guitar.

6. Stress-free “comfort when worn”
We deliberately avoided using metal hardware at the base of the shoulder straps. This eliminates the discomfort of metal parts pressing against your body. The straps are also padded, so even slender women should find them easy on the shoulders.

7. Mesh Back Panel
The breathable design helps reduce back sweat.

8. Rubber feet on the outer bottom.
These not only prevent dirt from getting on the bag and cushion impacts but also reduce the risk of tears caused by friction against the ground.

We’ve designed a handle that’s easy to grip and won’t cause hand pain.


10. Second and third handles
Handles are positioned not only on the sides but also on the front and back (center) of the case. This makes it dramatically easier to carry the case vertically on trains or move it around quickly.

11. Large-Capacity Pocket
Features a large pocket that easily accommodates A4-sized files, sheet music, and shields.


12. Top Pocket
There’s also a pocket for storing small guitar accessories and maintenance items, such as capos and tuners.
It’s within easy reach even “while standing,” making it convenient for taking out or putting away earphones or your wallet while on the go.

13. Comes with a Hook for Convenient Storage】
Can be hung on a wall for smart storage

Compatible Models
Compatible with a wide range of sizes, from Dreadnought (e.g., Martin D-28) to Jumbo (e.g., Gibson J-45). The internal neck pillow and body cushion are removable and adjustable, allowing you to customize the fit to your guitar.
~Storage Examples~
Dreadnought size (Martin D-28, Gibson Hummingbird)
Jumbo Size (Gibson J-45)

YAMAHA LL Series (LL6, etc.)
*The guitar can be stored by removing one of the internal cushions at the tip of the headstock. Although the wide body makes it a tight fit, the zipper operated without any issues.


000 Size (Martin 000-28)
*The tape on the headstock pad reduces rattling inside the case.

Small Size (Gibson B-25)
*The tape on the headstock pad reduces rattling inside the case.

Epiphone Head (Epiphone FT-79)
*Compatible with Epiphone’s longer headstocks. The guitar can be stored by removing the top and bottom cushions inside the case.
(Please note that this case is not compatible with all Epiphone guitars; please inquire in advance to confirm compatibility.)

12-string guitars (Martin 12-string)
*The guitar can be stored by removing the top and bottom cushions inside the case.
(Please note that this case is not compatible with all 12-string guitars; please inquire in advance to confirm compatibility.)


*Super Jumbo sizes (such as the Gibson SJ-200) and models like the J-185 cannot be stored.
If you’re unsure whether your guitar will fit, please feel free to contact us via the chat feature at the bottom right of the page or by email (aco@tcgakki.com).
Shipping and Packaging
[For Online Purchases] We typically wrap your item securely in bubble wrap and ship it to you. If you prefer packaging in a cardboard box,we can accommodate this for an additional fee, so please let us know when placing your order.
[Also Available in-Store] We also sell these at the Advance Guitars (TCGAKKI) store. You can even try it on with your own guitar to see how it feels. Please stop by!