Siena
Premium Model - Bordeaux Color
Elevate your style with the Siena Muscle Fit T-shirt , a perfect balance of elegance and Italian craftsmanship. Made entirely in Italy, this sophisticated Bordeaux T-shirt is designed to flatter your figure with its slim, contoured fit.
Strategically placed seams and a slightly stretchy fabric ensure a perfect fit and unparalleled comfort, allowing you to move naturally in any situation.
Made from 100% extra-combed cotton , chosen for its superior softness and durability, the Siena represents the excellence of Made in Italy , where every detail is taken care of with artisan precision.
Wearing the Siena Muscle Fit means choosing a versatile and high-quality garment, perfect for refined casual outfits or special occasions, with a color that conveys warmth, personality and timeless style.
Our muscle fit clothing is designed to enhance your physique to the fullest .
Each piece is designed to fit snugly across the chest and arms , while providing a more comfortable fit across the abdomen .
Made of high quality cotton , our products not only enhance your curves, but also offer an unmatched softness to the touch. Choose the best for your style and comfort.
Cotton is a natural fibre that requires care: it may shrink slightly (about 3-5%) in the first washes, but if treated delicately it maintains its softness and shape over time.
To make your garment last longer, here are some simple but effective tips:
- Wash it cold, preferably by hand.
If you use a washing machine, set a delicate cycle below 30°C. This is the best way to protect the fibers and maintain the garment's original shape.
For an even more gentle treatment, opt for hand washing : soak the garment for about 5 minutes, rinse thoroughly, and pat dry with a towel to remove excess water. This way, the natural fibers will remain protected and intact.
- Be careful with the centrifuge.
Avoid excessively high spin speeds: if possible, choose 600 rpm or lower. Even better if you can gently wring it out by hand, perhaps by wrapping it in a towel.
- No dryer.
Intense heat is cotton's worst enemy: it risks shrinking or deforming. Air dry, flat or on a hanger, but always gently.
- Keep your boss in the shade.
Don't let it dry in direct sunlight: in addition to fading the fabric, the heat can alter its fit.
- Little detergent, less fabric softener.
There's no need to overdo it: a light dose is more than enough. The cotton will thank you and stay soft longer.
Below are approximate height and weight ranges. Please consider these as guidelines.
Furthermore, the premium model is wider on the torso: so if you buy a premium S, we suggest you opt for an essential M and so on for the various sizes.
Our customers who are between two sizes choose the smaller one:

If you have any questions about sizes, contact us on WhatsApp!
Please note: Our t-shirts are designed for a "muscle fit" that accentuates the chest and shoulders while maintaining a slight snugness at the waist. If you have a particularly slim or very lean physique, we recommend choosing a size smaller than usual for a more fitted effect, including at the waist.
3 benefits you'll notice from the first use

Perfect fit
Problem : Classic t-shirts often fall straight down, obscuring your figure and creating a sloppy look.
Solution : Altaforma Milano's muscle fit is designed to enhance male proportions: it hugs the chest and shoulders, maintaining a clean waistline. A tailored design that accentuates the figure without ever being restrictive.

High comfort
Problem: Many t-shirts cling or lose their shape after just a few hours, leaving them feeling stiff or sloppy.
Solution: Our cotton adapts to your body's movements, always maintaining its shape. Soft on the skin, fresh and natural: it lasts all day without ever pulling or losing its shape.

Fatta in Italia. Davvero.
Problem: Many T-shirts today are mass-produced, losing the craftsmanship that truly guarantees durability and value over time.
Solution: Our t-shirts are made in Italy, in workshops that have been handing down the art of tailoring for generations. Every detail (from cut to stitching) reflects the experience of Italian master craftsmen. A garment designed to last, an authentic symbol of Made in Italy.
Frequently Asked Questions
What differentiates Altaforma Milano T-shirts from other T-shirts?
Muscle fit T-shirts differ from regular T-shirts mainly in their cut and fit . While a standard T-shirt tends to have a looser, more relaxed fit, muscle fit T-shirts are designed to fit tight in strategic areas , such as the shoulders, chest, and arms, highlighting your muscles without being overly tight or uncomfortable.
What is the difference between the Essential collection and the Premium collection?
Altaforma's Essential collection is designed to offer the best value, with lightweight and comfortable T-shirts ideal for everyday wear. Made from 100% 170 gsm cotton , they guarantee freshness and a muscle-fit fit suitable for any occasion.
The Premium collection, on the other hand, represents the brand's excellence: each piece is made from 180 gsm extra-combed cotton , which is fuller, softer, and more durable. The finishes are meticulously crafted to elegantly accentuate the body. Ideal for more formal occasions or to wear under a jacket.
Muscle fit polo shirts, on the other hand, only have one model.
Two collections, two different experiences, one philosophy: enhancing the body with style.
How does the shirt fit my body?
Our muscle fit t-shirts are designed to enhance your physique, highlighting your muscles without being too tight or uncomfortable . Thanks to the tight cut on the shoulders, chest and arms , the t-shirt perfectly follows the lines of your body , offering a defined but comfortable look.
What material are the T-shirts made of?
Our muscle fit t-shirts are made of 100% cotton which guarantees a natural, soft and breathable feel on the skin, while allowing the t-shirt to adapt perfectly to the body and maintain its shape even after many washes.
This combination is ideal for those looking for a garment that not only enhances the muscles, but also offers comfort and durability over time.
Where are the T-shirts produced?
Our muscle fit t-shirts are made in Italy .
We have chosen these production partners to ensure high standards of quality, sustainability, and ethical working conditions.
We only work with suppliers who meet rigorous criteria for materials and manufacturing processes, so we can offer you a product that not only enhances your figure but is also made with social and environmental responsibility in mind.
What are the shipping times and costs?
We ship throughout Italy in 2-3 days via Amazon Shipping , delivering 7 days a week.
Shipping costs are €5.95, with free shipping for orders over €49.











