Kallos +Sthenos
- Kallos
- Beauty. Fine form.
- Sthenos
- Strength. Power.
Two Greek roots. One purpose. Training apparel that brings strength and beauty together, from the way you move to the smallest stitch.
Drag to rotateMen’s 7″ two-layer short · 360° product view.
Strength in motion. Beauty in form.
The meaning behind KALLISTHENMake strength your own.
Build a complete look on the model. Explore tee, short and sock colours, then zoom in to inspect the fit and stitch work.
Men’s
Training essentials.
Every detail has a purpose.
Our first collection brings together two-layer training shorts, muscle tees and sock pairs for men and women. Start with the fit. Look closer at the construction.
| The detail | Men’s training short | Women’s training short |
|---|---|---|
| Outer inseam | 7 inches | 4 inches |
| Liner | Approximately 1-inch tonal reveal | Concealed under the outer short |
| Storage | Two hand pockets + right-thigh phone pocket | Two hand pockets + right-thigh phone pocket |
| Signature finish | Contrast seams + reinforced side notches | Contrast seams + reinforced side notches |
Men’s and women’s shorts share the same pocket layout, waistband structure, and signature contrast finish.
Five pieces. More possibilities.
Men’s Two Layer Training Short 7
7″ inseam · tonal liner reveal
Men’s Muscle Tee
A clean line. A considered fit.
Women’s Two Layer Training Short 4
4″ inseam · high rise · concealed liner
Women’s Muscle Tee
A clean line. A considered fit.
KALLISTHEN Training Sock Pair
Ribbed support · breathable knit · a matched finish
Nothing extra.
Everything intentional.
Two layers, three pockets, and a place for every detail. Meet the design behind our training short.
A waistband with a plan
45 mm dual-track construction separates the internal flat drawcord from the elastic support.
Room to move
Lyocell-rich stretch-knit outer shell. The 155–195 GSM weight balances movement and coverage.
A closer layer
A 190–230 GSM lyocell-rich liner is designed for next-to-skin comfort and moderate support.
The everyday pockets
Two angled, open hand pockets keep the essentials close without extra hardware.
A place for your phone
Right-thigh liner pocket with an overlap-envelope opening. Target usable space: 175 × 95 mm.
Small details. Real purpose.
Low-profile four-needle flatseams and reinforced triangular side-hem notches complete the construction.
The men’s liner extends approximately 1″ below the outer hem. The lyocell-rich shell and liner balance soft handfeel, coverage, and freedom of movement.
Explore the short
Carry what matters.
Keep your focus.
The phone pocket sits inside the right-thigh liner, with an envelope opening designed to hold a cased device close to the body.
Designed for a cased device up to 165 × 85 × 15 mm.The envelope opening keeps it close to the body.
Your first move.
Just 10% to begin.
Choose your pieces, colours and sizes. The preorder plan uses a 10% merchandise deposit, with the remaining 90% paid separately.
Build your preorder Deposit, delivery and availabilityGood questions.
Clear answers.
The name, the construction and the details of the first collection. Ask us anything else.