The Company had $3.0 million and $17.2 million of outstanding letters of credit as of June 30, 2022 and December 31, 2021, no short-term borrowings as of June 30, 2022, and $1.2 million in short-term borrowings as of December 31, 2021. Interest expense was $4.6 million and $3.4 million for the three months ended June 30, 2022 and 2021 and $9.1 million and $7.5 million for six months ended June 30, 2022 and 2021.

Long-term borrowings were as follows:

Revolving Credit Facility

The Company maintains a revolving credit facility to manage liquidity; including working capital and capital expenditures. On December 15, 2021, the Company amended its $500.0 million senior, unsecured revolving credit agreement dated November 21, 2019 (the “Amended Credit Agreement”). The Amended Credit Agreement expands its senior, unsecured credit facility to $750.0 million, which may be increased by up to $250.0 million under certain conditions and provides for the issuance of letters of credit up to a maximum of $100.0 million and swingline loans up to a maximum of $50.0 million. The Amended Credit Agreement extends the maturity date of the credit agreement, which was due to expire on November 21, 2024, to December 15, 2026. The Company had approximately $50.2 million in short-term borrowings as of March 31, 2022 on its revolving credit facility which it fully repaid during the second quarter of 2022. The weighted-average annual interest rate on borrowings was approximately 1.70% during the six months ended June 30, 2022. The unused credit capacity was $747.0 million and $732.8 million as of June 30, 2022 and December 31, 2021.

The Company is required to maintain a maximum total adjusted net leverage ratio of 3.75:1, except in the event of an acquisition in which case the ratio may be increased at the Company’s election to 4.25:1 for the quarter in which such acquisition occurs and for the next three quarters thereafter. The Company was in compliance with the financial covenants as of June 30, 2022.

HF-T1 Distribution Center Loan

To finance construction and improvements to the Company’s North American distribution center, the Company’s joint venture with HF Logistics I, LLC (“HF”), HF Logistics-SKX, LLC (the “JV”), through a wholly-owned subsidiary of the JV (“HF-T1”), entered into a $129.5 million construction loan agreement which matures on March 18, 2025 (the “HF-T1 2020 Loan”) with interest of LIBOR Daily Floating Rate plus a margin of 1.75% per annum.

HF-T1 also entered into an ISDA master agreement (together with the schedule related thereto, the “Swap Agreement”) with Bank of America, N.A. to govern derivative and/or hedging transactions that HF-T1 concurrently entered into with Bank of America, N.A. Pursuant to the Swap Agreement, on August 14, 2015, HF-T1 entered into a confirmation of swap transactions (the “Interest Rate Swap”) as amended (the “Swap Agreement Amendment”) on March 18, 2020 with Bank of America, N.A with a maturity date of March 18, 2025. The Swap Agreement Amendment fixes the effective interest rate on the HF-T1 2020 Loan at 2.55% per annum. The HF-T1 2020 Loan and Swap Agreement Amendment are subject to customary covenants and events of default. Bank of America, N.A. also acts as a lender and syndication agent under the Company’s revolving credit facility.

The Interest Rate Swap involves the receipt of variable amounts from a counterparty in exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. As of both June 30, 2022 and December 31, 2021, the Interest Rate Swap had an aggregate notional amount of $129.5 million. Under the terms of the Swap Agreement Amendment, the Company will pay a weighted-average fixed rate of 0.795% on the notional amount and receive payments from the counterparty based on the 30-day LIBOR rate, effectively modifying the Company’s exposure to interest rate risk by converting floating-rate debt to a fixed rate of 4.08%.

HF-T2 Distribution Center Construction Loan

To finance the expansion of the Company’s North American distribution center, the JV, through HF Logistics-SKX T2, LLC, a wholly-owned subsidiary of the JV (“HF-T2”) entered into a construction loan agreement of up to $73.0 million which matures on April 3, 2025. Under the 2020 Construction Loan Agreement, the interest rate per annum on the HF-T2 2020 Construction Loan is BSBY Daily Floating Rate (as defined therein) plus a margin of 190 basis points, reducing to 175 basis points upon substantial completion of the construction and certain other conditions being satisfied. The weighted-average annual interest rate on borrowings under the HF-T2 Distribution Center Construction Loan was approximately 2.40% during the six months ended June 30, 2022. The obligations of the JV under this loan are guaranteed by TGD Holdings I, LLC, which is an affiliate of HF.

China Distribution Center Construction Loan

The Company entered into a 700.0  million yuan loan agreement to finance the construction of its distribution center in China which matures on September 28, 2023. The interest rate at June 30, 2022 was 4.00% and may increase or decrease over the life of the loan, and will be evaluated every 12 months. Beginning in 2021, the principal of the loan is repaid in semi-annual installments of variable amounts. The obligations of the China distribution center construction loan, entered through the Company’s Taicang Subsidiary are jointly and severally guaranteed by the Company’s China joint venture. As of June 30, 2022 and December 31, 2021, the outstanding balance under this loan included approximately $33.3 million and $28.2 million classified as current installments of long-term borrowings in the Company’s condensed consolidated balance sheets.

China Operational Loans

The Company has entered certain secured credit facilities to support the operations of its China joint venture. The balance of working capital loans was approximately $42.6 million with interest rates ranging from 1.63% to 2.83% per annum as of June 30, 2022. The balance of working capital loans as of December 31, 2021 was approximately $52.6 million with interest rates ranging from 1.00% to 3.70% per annum. The balance of loans related to a corporate office building in Shanghai was approximately $14.5 million, with interest at 4.13% per annum, as of June 30, 2022 and $17.2 million as of December 31, 2021, with interest at

4.28% per annum, payable at terms agreed by the lender. As of June 30, 2022 the outstanding balances classified as current borrowings in the Company’s condensed consolidated balance sheets included $28.4 million related to the working capital loans and $4.2 million related to the office building loans. As of December 31, 2021, the outstanding balances classified as current borrowings in the Company’s condensed consolidated balance sheets included $37.6 million related to the working capital loans and $4.0 million related to the office building loans.