Apparel
Basecamp Heavyweight Tee
Boxy-fit heavyweight cotton tee with the North Summit Labs logo on the chest and northsummitlabs.app across the back. Available in black and white, sizes S–XXL. Size up 1–2 for a more oversized look.
Black / S
$35.99
Apparel
Summit Mark Heavyweight Tee
A heavyweight cotton tee featuring the North Summit mountain mark at the chest and northsummitlabs.app across the back. Available in black and white, sizes S–XXL. Boxy fit; size up 1–2 for a more oversized look.
Available Strengths
Independently Tested
COA on request
≥ 99% Purity
HPLC verified
Ships Nationwide
All 50 states
Peptide Calculator — reconstitution & syringe units
Work out BAC water volume, mg/mL concentration, and exact insulin-syringe units for Summit Mark Heavyweight Tee.
Customer Reviews
About Summit Mark Heavyweight Tee
The Summit Mark tee pairs the North Summit Labs mountain emblem at the chest with the northsummitlabs.app wordmark across the upper back.
It uses the same heavyweight, boxy-fit cotton blank as the Basecamp tee, with dropped shoulders and a relaxed body. Size up 1–2 sizes for a more oversized look.
Each tee is made to order and ships separately from peptide orders. Free-vial offers and sitewide promotional codes do not apply to apparel.
Specifications
| Fit | Boxy fit, dropped shoulder — size up 1–2 for oversized |
|---|---|
| Colors | Black, White |
| Sizes | S, M, L, XL, XXL |
| Mountain chest mark, back wordmark | |
| SKU | NSL-TEE-SUMMIT-MARK |
Testing & Quality
Learn more about our sourcing and testing process on our Testing & Quality page.
Shipping & Returns
Free U.S. shipping on orders over $200; otherwise a flat $9.99 shipping rate applies. All sales are final. See our full Shipping & Returns policy for details.
Frequently Asked Questions
How does the tee fit?
It uses the same boxy, heavyweight cut as the Basecamp tee, with dropped shoulders and a relaxed body. Size up 1–2 sizes for a more oversized look.
Do discounts apply to apparel?
No. Free-vial offers and sitewide promotional codes apply to research items only.
How does apparel ship?
Apparel is made to order and ships separately from peptide orders, so it takes a few additional days to ship. Our 24-hour dispatch window does not apply to apparel.
Related Apparel
Apparel
Summit Vial Heavyweight Tee
A black heavyweight cotton tee with a subtle North Summit chest mark and an illustrated vial rising above the mountain range on the back. Sizes S–XXL. Boxy fit; size up 1–2 for a more oversized look.
Black / S
$35.99
For Research Use Only
All products sold by North Summit Labs are intended strictly for in-vitro laboratory research and are not for human or animal consumption.