Envoy Air is Domestic Airlines in the United States and is owned by American Airlines Group. Hence it follows the baggage policy of American Airlines. Below are general guidelines.

Carry-On Baggage:

One carry-on bag and one personal item (like a purse or laptop) are allowed per passenger.
Carry-on should not exceed 22 x 14 x 9 inches (56 x 36 x 23 cm), including handles and wheels.

Checked Baggage:

Envoy Airlines typically allows for up to 10 bags per passenger, with fees depending upon the route and type of fare. Here’s a general outline of fees for the first few bags for passengers traveling on 
Domestic Flights:

First bag: $30 USD
Second bag: $40 USD
Third bag: $150 USD
Fourth and beyond (each): $200 USD

Overweight and Oversized Bags:

Bags weighing between 51 and 70 pounds (23 and 32 kg) are typically subject to an extra fee of $100 USD per bag.
Bags weighing between 71 and 100 pounds (32 and 45 kg) are typically subject to an extra fee of $200 USD per bag.
Oversized bags (those with a linear dimension between 62 and 80 inches / 158 and 203 cm) are typically subject to an extra fee of $200 USD per bag.

Tips for avoid extra baggage fees

Pack Lightly: Bring only necessary items.
Wear Heavy Items: Wear the heaviest shoes and clothes during travel.
Consider Ticket Upgrades: Higher class tickets may offer more baggage allowance.
Use Compression Bags: These can help fit more into your luggage.